Current time in Porto Alegre, Rio Grande do Sul Brazil:
2:18:13 am BRT.
Current date: Sun, 24 Feb 2019.
Porto Alegre time zone: BRT - Brasilia time.
Porto Alegre time zone offset: UTC/GMT -3
DST in Porto Alegre started on: 04 November 2018
DST in Porto Alegre ended on: 17 February 2019
About time zones in Brazil
Porto Alegre time zone: BRT - Brasilia time.
Porto Alegre time zone offset: UTC/GMT -3
DST in Porto Alegre started on: 04 November 2018
DST in Porto Alegre ended on: 17 February 2019
About time zones in Brazil
The sunrise sunset times for Porto Alegre, Rio Grande do Sul Brazil is displayed for today 24 Feb 2019 and coming 30 days.
| Date | Sunrise | Sunset | Daylength |
| Fri, 22 Feb 2019 | 6:10 am | 7:05 pm | 12 hrs 55 mins |
| Sat, 23 Feb 2019 | 6:11 am | 7:04 pm | 12 hrs 53 mins |
| Sun, 24 Feb 2019 | 6:12 am | 7:03 pm | 12 hrs 51 mins |
| Mon, 25 Feb 2019 | 6:12 am | 7:02 pm | 12 hrs 50 mins |
| Tue, 26 Feb 2019 | 6:13 am | 7:01 pm | 12 hrs 48 mins |
| Wed, 27 Feb 2019 | 6:14 am | 7:00 pm | 12 hrs 46 mins |
| Thu, 28 Feb 2019 | 6:14 am | 6:59 pm | 12 hrs 45 mins |
| Fri, 01 Mar 2019 | 6:15 am | 6:57 pm | 12 hrs 42 mins |
| Sat, 02 Mar 2019 | 6:16 am | 6:56 pm | 12 hrs 40 mins |
| Sun, 03 Mar 2019 | 6:17 am | 6:55 pm | 12 hrs 38 mins |
| Mon, 04 Mar 2019 | 6:17 am | 6:54 pm | 12 hrs 37 mins |
| Tue, 05 Mar 2019 | 6:18 am | 6:53 pm | 12 hrs 35 mins |
| Wed, 06 Mar 2019 | 6:19 am | 6:52 pm | 12 hrs 33 mins |
| Thu, 07 Mar 2019 | 6:19 am | 6:51 pm | 12 hrs 32 mins |
| Fri, 08 Mar 2019 | 6:20 am | 6:49 pm | 12 hrs 29 mins |
| Sat, 09 Mar 2019 | 6:21 am | 6:48 pm | 12 hrs 27 mins |
| Sun, 10 Mar 2019 | 6:21 am | 6:47 pm | 12 hrs 26 mins |
| Mon, 11 Mar 2019 | 6:22 am | 6:46 pm | 12 hrs 24 mins |
| Tue, 12 Mar 2019 | 6:23 am | 6:45 pm | 12 hrs 22 mins |
| Wed, 13 Mar 2019 | 6:23 am | 6:44 pm | 12 hrs 21 mins |
| Thu, 14 Mar 2019 | 6:24 am | 6:42 pm | 12 hrs 18 mins |
| Fri, 15 Mar 2019 | 6:24 am | 6:41 pm | 12 hrs 17 mins |
| Sat, 16 Mar 2019 | 6:25 am | 6:40 pm | 12 hrs 15 mins |
| Sun, 17 Mar 2019 | 6:26 am | 6:39 pm | 12 hrs 13 mins |
| Mon, 18 Mar 2019 | 6:26 am | 6:38 pm | 12 hrs 12 mins |
| Tue, 19 Mar 2019 | 6:27 am | 6:36 pm | 12 hrs 9 mins |
| Wed, 20 Mar 2019 | 6:28 am | 6:35 pm | 12 hrs 7 mins |
| Thu, 21 Mar 2019 | 6:28 am | 6:34 pm | 12 hrs 6 mins |
| Fri, 22 Mar 2019 | 6:29 am | 6:33 pm | 12 hrs 4 mins |
| Sat, 23 Mar 2019 | 6:29 am | 6:32 pm | 12 hrs 3 mins |
| Sun, 24 Mar 2019 | 6:30 am | 6:30 pm | 12 hrs 0 mins |
| Mon, 25 Mar 2019 | 6:31 am | 6:29 pm | 11 hrs 58 mins |
| Tue, 26 Mar 2019 | 6:31 am | 6:28 pm | 11 hrs 57 mins |
Time difference between Porto Alegre and other cities:
If you don't see the city, go to the time zone converter page and enter the two cities to get the time difference.| City | Time difference | ahead / behind |
| A Coruna | +4:0 hours | A Coruna is 4 hours ahead of Porto Alegre. |
| Aachen | +4:0 hours | Aachen is 4 hours ahead of Porto Alegre. |
| Aalborg | +4:0 hours | Aalborg is 4 hours ahead of Porto Alegre. |
| Abbotsford | -5:0 hours | Abbotsford is 5 hours behind Porto Alegre. |
| Abbottabad | +8:0 hours | Abbottabad is 8 hours ahead of Porto Alegre. |
| Aberdeen | +3:0 hours | Aberdeen is 3 hours ahead of Porto Alegre. |
| Abidjan | +3:0 hours | Abidjan is 3 hours ahead of Porto Alegre. |
| Abilene | -3:0 hours | Abilene is 3 hours behind Porto Alegre. |
| Abu Dhabi | +7:0 hours | Abu Dhabi is 7 hours ahead of Porto Alegre. |
| Abuja | +4:0 hours | Abuja is 4 hours ahead of Porto Alegre. |
| Acapulco | -3:0 hours | Acapulco is 3 hours behind Porto Alegre. |
| Accra | +3:0 hours | Accra is 3 hours ahead of Porto Alegre. |
| Acharnes | +5:0 hours | Acharnes is 5 hours ahead of Porto Alegre. |
| Acre | +5:0 hours | Acre is 5 hours ahead of Porto Alegre. |
| Acworth | -2:0 hours | Acworth is 2 hours behind Porto Alegre. |
| Adak | -7:0 hours | Adak is 7 hours behind Porto Alegre. |
| Adamstown | -5:0 hours | Adamstown is 5 hours behind Porto Alegre. |
| Addis Ababa | +6:0 hours | Addis Ababa is 6 hours ahead of Porto Alegre. |
| Adelaide | * +13:30 hours | Adelaide is 13 hours, 30 minutes ahead of Porto Alegre. |
| Aden | +6:0 hours | Aden is 6 hours ahead of Porto Alegre. |
| Agadir | +4:0 hours | Agadir is 4 hours ahead of Porto Alegre. |
| Agartala | +8:30 hours | Agartala is 8 hours, 30 minutes ahead of Porto Alegre. |
| Agra | +8:30 hours | Agra is 8 hours, 30 minutes ahead of Porto Alegre. |
| Aguascalientes | -3:0 hours | Aguascalientes is 3 hours behind Porto Alegre. |
| Ahmedabad | +8:30 hours | Ahmedabad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Airolo | +4:0 hours | Airolo is 4 hours ahead of Porto Alegre. |
| Aix-en-Provence | +4:0 hours | Aix-en-Provence is 4 hours ahead of Porto Alegre. |
| Aizawl | +8:30 hours | Aizawl is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ajaccio | +4:0 hours | Ajaccio is 4 hours ahead of Porto Alegre. |
| Ajax | -2:0 hours | Ajax is 2 hours behind Porto Alegre. |
| Ajman | +7:0 hours | Ajman is 7 hours ahead of Porto Alegre. |
| Ajmer | +8:30 hours | Ajmer is 8 hours, 30 minutes ahead of Porto Alegre. |
| Akbarpur | +8:30 hours | Akbarpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Aklavik | -4:0 hours | Aklavik is 4 hours behind Porto Alegre. |
| Akola | +8:30 hours | Akola is 8 hours, 30 minutes ahead of Porto Alegre. |
| Akron | -2:0 hours | Akron is 2 hours behind Porto Alegre. |
| Akureyri | +3:0 hours | Akureyri is 3 hours ahead of Porto Alegre. |
| Al Ain | +7:0 hours | Al Ain is 7 hours ahead of Porto Alegre. |
| Al Jizah | +5:0 hours | Al Jizah is 5 hours ahead of Porto Alegre. |
| Alagoinhas | same time | There is no time difference between Alagoinhas and Porto Alegre. |
| Alappuzha | +8:30 hours | Alappuzha is 8 hours, 30 minutes ahead of Porto Alegre. |
| Albany | -2:0 hours | Albany is 2 hours behind Porto Alegre. |
| Albuquerque | -4:0 hours | Albuquerque is 4 hours behind Porto Alegre. |
| Albury | * +14:0 hours | Albury is 14 hours ahead of Porto Alegre. |
| Aleppo | +5:0 hours | Aleppo is 5 hours ahead of Porto Alegre. |
| Alesund | +4:0 hours | Alesund is 4 hours ahead of Porto Alegre. |
| Alexandria | +5:0 hours | Alexandria is 5 hours ahead of Porto Alegre. |
| Alexandria (US) | -2:0 hours | Alexandria (US) is 2 hours behind Porto Alegre. |
| Algiers | +4:0 hours | Algiers is 4 hours ahead of Porto Alegre. |
| Alicante | +4:0 hours | Alicante is 4 hours ahead of Porto Alegre. |
| Alice Springs | +12:30 hours | Alice Springs is 12 hours, 30 minutes ahead of Porto Alegre. |
| Aligarh | +8:30 hours | Aligarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Alipore | +8:30 hours | Alipore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Allentown | -2:0 hours | Allentown is 2 hours behind Porto Alegre. |
| Almaty | +9:0 hours | Almaty is 9 hours ahead of Porto Alegre. |
| Almere | +4:0 hours | Almere is 4 hours ahead of Porto Alegre. |
| Almeria | +4:0 hours | Almeria is 4 hours ahead of Porto Alegre. |
| Alofi | -8:0 hours | Alofi is 8 hours behind Porto Alegre. |
| Alpena | -2:0 hours | Alpena is 2 hours behind Porto Alegre. |
| Alwar | +8:30 hours | Alwar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Amadora | +3:0 hours | Amadora is 3 hours ahead of Porto Alegre. |
| Amalner | +8:30 hours | Amalner is 8 hours, 30 minutes ahead of Porto Alegre. |
| Amarillo | -3:0 hours | Amarillo is 3 hours behind Porto Alegre. |
| Ambon | +12:0 hours | Ambon is 12 hours ahead of Porto Alegre. |
| Amersfoort | +4:0 hours | Amersfoort is 4 hours ahead of Porto Alegre. |
| Amiens | +4:0 hours | Amiens is 4 hours ahead of Porto Alegre. |
| Amman | +5:0 hours | Amman is 5 hours ahead of Porto Alegre. |
| Amravati | +8:30 hours | Amravati is 8 hours, 30 minutes ahead of Porto Alegre. |
| Amritsar | +8:30 hours | Amritsar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Amroha | +8:30 hours | Amroha is 8 hours, 30 minutes ahead of Porto Alegre. |
| Amsterdam | +4:0 hours | Amsterdam is 4 hours ahead of Porto Alegre. |
| Amstetten | +4:0 hours | Amstetten is 4 hours ahead of Porto Alegre. |
| Anadyr | +15:0 hours | Anadyr is 15 hours ahead of Porto Alegre. |
| Anaheim | -5:0 hours | Anaheim is 5 hours behind Porto Alegre. |
| Anand | +8:30 hours | Anand is 8 hours, 30 minutes ahead of Porto Alegre. |
| Anantnag | +8:30 hours | Anantnag is 8 hours, 30 minutes ahead of Porto Alegre. |
| Anapolis | same time | There is no time difference between Anapolis and Porto Alegre. |
| Anchorage | -6:0 hours | Anchorage is 6 hours behind Porto Alegre. |
| Andorra La Vella | +4:0 hours | Andorra La Vella is 4 hours ahead of Porto Alegre. |
| Angeles | +11:0 hours | Angeles is 11 hours ahead of Porto Alegre. |
| Angers | +4:0 hours | Angers is 4 hours ahead of Porto Alegre. |
| Angul | +8:30 hours | Angul is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ankara | +6:0 hours | Ankara is 6 hours ahead of Porto Alegre. |
| Ann Arbor | -2:0 hours | Ann Arbor is 2 hours behind Porto Alegre. |
| Annapolis | -2:0 hours | Annapolis is 2 hours behind Porto Alegre. |
| Annapolis County | -1:0 hour | Annapolis County is 1 hour behind Porto Alegre. |
| Anshan | +11:0 hours | Anshan is 11 hours ahead of Porto Alegre. |
| Antalya | +6:0 hours | Antalya is 6 hours ahead of Porto Alegre. |
| Antananarivo | +6:0 hours | Antananarivo is 6 hours ahead of Porto Alegre. |
| Antofagasta | * same time | There is no time difference between Antofagasta and Porto Alegre. |
| Antwerp | +4:0 hours | Antwerp is 4 hours ahead of Porto Alegre. |
| Apeldoorn | +4:0 hours | Apeldoorn is 4 hours ahead of Porto Alegre. |
| Apia | * +17:0 hours | Apia is 17 hours ahead of Porto Alegre. |
| Aqtau | +8:0 hours | Aqtau is 8 hours ahead of Porto Alegre. |
| Aqtobe | +8:0 hours | Aqtobe is 8 hours ahead of Porto Alegre. |
| Aracaju | same time | There is no time difference between Aracaju and Porto Alegre. |
| Araguaina | same time | There is no time difference between Araguaina and Porto Alegre. |
| Araria | +8:30 hours | Araria is 8 hours, 30 minutes ahead of Porto Alegre. |
| Arden-Arcade | -5:0 hours | Arden-Arcade is 5 hours behind Porto Alegre. |
| Arequipa | -2:0 hours | Arequipa is 2 hours behind Porto Alegre. |
| Arhus | +4:0 hours | Arhus is 4 hours ahead of Porto Alegre. |
| Arica | * same time | There is no time difference between Arica and Porto Alegre. |
| Arkalyk | +8:0 hours | Arkalyk is 8 hours ahead of Porto Alegre. |
| Arlington | -3:0 hours | Arlington is 3 hours behind Porto Alegre. |
| Arnhem | +4:0 hours | Arnhem is 4 hours ahead of Porto Alegre. |
| Arrah | +8:30 hours | Arrah is 8 hours, 30 minutes ahead of Porto Alegre. |
| Arrecife | +3:0 hours | Arrecife is 3 hours ahead of Porto Alegre. |
| Arusha | +6:0 hours | Arusha is 6 hours ahead of Porto Alegre. |
| Arviat | -3:0 hours | Arviat is 3 hours behind Porto Alegre. |
| Asansol | +8:30 hours | Asansol is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ashdod | +5:0 hours | Ashdod is 5 hours ahead of Porto Alegre. |
| Asheville | -2:0 hours | Asheville is 2 hours behind Porto Alegre. |
| Ashgabat | +8:0 hours | Ashgabat is 8 hours ahead of Porto Alegre. |
| Ashkelon | +5:0 hours | Ashkelon is 5 hours ahead of Porto Alegre. |
| Ashkhabad | +8:0 hours | Ashkhabad is 8 hours ahead of Porto Alegre. |
| Asmara | +6:0 hours | Asmara is 6 hours ahead of Porto Alegre. |
| Aspen | -4:0 hours | Aspen is 4 hours behind Porto Alegre. |
| Astana | +9:0 hours | Astana is 9 hours ahead of Porto Alegre. |
| Asuncion | * same time | There is no time difference between Asuncion and Porto Alegre. |
| Athens | +5:0 hours | Athens is 5 hours ahead of Porto Alegre. |
| Athens (US) | -2:0 hours | Athens (US) is 2 hours behind Porto Alegre. |
| Atlanta | -2:0 hours | Atlanta is 2 hours behind Porto Alegre. |
| Atlantic City | -2:0 hours | Atlantic City is 2 hours behind Porto Alegre. |
| Atyrau | +8:0 hours | Atyrau is 8 hours ahead of Porto Alegre. |
| Auckland | * +16:0 hours | Auckland is 16 hours ahead of Porto Alegre. |
| Augsburg | +4:0 hours | Augsburg is 4 hours ahead of Porto Alegre. |
| Augusta | -2:0 hours | Augusta is 2 hours behind Porto Alegre. |
| Augusta (GA) | -2:0 hours | Augusta (GA) is 2 hours behind Porto Alegre. |
| Auraiya | +8:30 hours | Auraiya is 8 hours, 30 minutes ahead of Porto Alegre. |
| Aurangabad | +8:30 hours | Aurangabad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Aurora | -4:0 hours | Aurora is 4 hours behind Porto Alegre. |
| Aurora (IL) | -3:0 hours | Aurora (IL) is 3 hours behind Porto Alegre. |
| Austin | -3:0 hours | Austin is 3 hours behind Porto Alegre. |
| Avellino | +4:0 hours | Avellino is 4 hours ahead of Porto Alegre. |
| Azamgarh | +8:30 hours | Azamgarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Azores | +2:0 hours | Azores is 2 hours ahead of Porto Alegre. |
| Babylon | -2:0 hours | Babylon is 2 hours behind Porto Alegre. |
| Bacolod | +11:0 hours | Bacolod is 11 hours ahead of Porto Alegre. |
| Badaun | +8:30 hours | Badaun is 8 hours, 30 minutes ahead of Porto Alegre. |
| Baden | +4:0 hours | Baden is 4 hours ahead of Porto Alegre. |
| Baghdad | +6:0 hours | Baghdad is 6 hours ahead of Porto Alegre. |
| Baghlan | +7:30 hours | Baghlan is 7 hours, 30 minutes ahead of Porto Alegre. |
| Bagpat | +8:30 hours | Bagpat is 8 hours, 30 minutes ahead of Porto Alegre. |
| Baguio City | +11:0 hours | Baguio City is 11 hours ahead of Porto Alegre. |
| Baharampur | +8:30 hours | Baharampur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bahawalpur | +8:0 hours | Bahawalpur is 8 hours ahead of Porto Alegre. |
| Bahia Blanca | same time | There is no time difference between Bahia Blanca and Porto Alegre. |
| Bahraich | +8:30 hours | Bahraich is 8 hours, 30 minutes ahead of Porto Alegre. |
| Baikonur | +9:0 hours | Baikonur is 9 hours ahead of Porto Alegre. |
| Baker Lake | -3:0 hours | Baker Lake is 3 hours behind Porto Alegre. |
| Bakersfield | -5:0 hours | Bakersfield is 5 hours behind Porto Alegre. |
| Baku | +7:0 hours | Baku is 7 hours ahead of Porto Alegre. |
| Balaghat | +8:30 hours | Balaghat is 8 hours, 30 minutes ahead of Porto Alegre. |
| Balangir | +8:30 hours | Balangir is 8 hours, 30 minutes ahead of Porto Alegre. |
| Balasore | +8:30 hours | Balasore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Balikpapan | +11:0 hours | Balikpapan is 11 hours ahead of Porto Alegre. |
| Balkh | +7:30 hours | Balkh is 7 hours, 30 minutes ahead of Porto Alegre. |
| Ballarat | * +14:0 hours | Ballarat is 14 hours ahead of Porto Alegre. |
| Ballia | +8:30 hours | Ballia is 8 hours, 30 minutes ahead of Porto Alegre. |
| Balrampur | +8:30 hours | Balrampur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Baltimore | -2:0 hours | Baltimore is 2 hours behind Porto Alegre. |
| Balurghat | +8:30 hours | Balurghat is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bamako | +3:0 hours | Bamako is 3 hours ahead of Porto Alegre. |
| Bamyan | +7:30 hours | Bamyan is 7 hours, 30 minutes ahead of Porto Alegre. |
| Banda | +8:30 hours | Banda is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bandar Seri Begawan | +11:0 hours | Bandar Seri Begawan is 11 hours ahead of Porto Alegre. |
| Bandar-Abbas | +6:30 hours | Bandar-Abbas is 6 hours, 30 minutes ahead of Porto Alegre. |
| Bandung | +10:0 hours | Bandung is 10 hours ahead of Porto Alegre. |
| Banff | -4:0 hours | Banff is 4 hours behind Porto Alegre. |
| Bangalore | +8:30 hours | Bangalore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bangkok | +10:0 hours | Bangkok is 10 hours ahead of Porto Alegre. |
| Bangor | +3:0 hours | Bangor is 3 hours ahead of Porto Alegre. |
| Bangui | +4:0 hours | Bangui is 4 hours ahead of Porto Alegre. |
| Banjarmasin | +11:0 hours | Banjarmasin is 11 hours ahead of Porto Alegre. |
| Banjul | +3:0 hours | Banjul is 3 hours ahead of Porto Alegre. |
| Banka | +8:30 hours | Banka is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bankura | +8:30 hours | Bankura is 8 hours, 30 minutes ahead of Porto Alegre. |
| Banswara | +8:30 hours | Banswara is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bantam | +9:30 hours | Bantam is 9 hours, 30 minutes ahead of Porto Alegre. |
| Baoding | +11:0 hours | Baoding is 11 hours ahead of Porto Alegre. |
| Baotou | +11:0 hours | Baotou is 11 hours ahead of Porto Alegre. |
| Barabanki | +8:30 hours | Barabanki is 8 hours, 30 minutes ahead of Porto Alegre. |
| Baramulla | +8:30 hours | Baramulla is 8 hours, 30 minutes ahead of Porto Alegre. |
| Baran | +8:30 hours | Baran is 8 hours, 30 minutes ahead of Porto Alegre. |
| Barasat | +8:30 hours | Barasat is 8 hours, 30 minutes ahead of Porto Alegre. |
| Barcelona | +4:0 hours | Barcelona is 4 hours ahead of Porto Alegre. |
| Bardhaman | +8:30 hours | Bardhaman is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bareilly | +8:30 hours | Bareilly is 8 hours, 30 minutes ahead of Porto Alegre. |
| Barentsburg | +4:0 hours | Barentsburg is 4 hours ahead of Porto Alegre. |
| Bargarh | +8:30 hours | Bargarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bari | +4:0 hours | Bari is 4 hours ahead of Porto Alegre. |
| Bariloche | same time | There is no time difference between Bariloche and Porto Alegre. |
| Baripada | +8:30 hours | Baripada is 8 hours, 30 minutes ahead of Porto Alegre. |
| Barisal | +9:0 hours | Barisal is 9 hours ahead of Porto Alegre. |
| Barmer | +8:30 hours | Barmer is 8 hours, 30 minutes ahead of Porto Alegre. |
| Barnala | +8:30 hours | Barnala is 8 hours, 30 minutes ahead of Porto Alegre. |
| Barnstable | -2:0 hours | Barnstable is 2 hours behind Porto Alegre. |
| Barranquilla | -2:0 hours | Barranquilla is 2 hours behind Porto Alegre. |
| Barreiras | same time | There is no time difference between Barreiras and Porto Alegre. |
| Barrie | -2:0 hours | Barrie is 2 hours behind Porto Alegre. |
| Barwani | +8:30 hours | Barwani is 8 hours, 30 minutes ahead of Porto Alegre. |
| Basel | +4:0 hours | Basel is 4 hours ahead of Porto Alegre. |
| Basra | +6:0 hours | Basra is 6 hours ahead of Porto Alegre. |
| Basse-Terre | -1:0 hour | Basse-Terre is 1 hour behind Porto Alegre. |
| Basseterre | -1:0 hour | Basseterre is 1 hour behind Porto Alegre. |
| Basti | +8:30 hours | Basti is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bastia | +4:0 hours | Bastia is 4 hours ahead of Porto Alegre. |
| Bat Yam | +5:0 hours | Bat Yam is 5 hours ahead of Porto Alegre. |
| Bathinda | +8:30 hours | Bathinda is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bathurst | -1:0 hour | Bathurst is 1 hour behind Porto Alegre. |
| Baton Rouge | -3:0 hours | Baton Rouge is 3 hours behind Porto Alegre. |
| Bauru | same time | There is no time difference between Bauru and Porto Alegre. |
| Bayreuth | +4:0 hours | Bayreuth is 4 hours ahead of Porto Alegre. |
| Beaumont | -3:0 hours | Beaumont is 3 hours behind Porto Alegre. |
| Beed | +8:30 hours | Beed is 8 hours, 30 minutes ahead of Porto Alegre. |
| Beersheba | +5:0 hours | Beersheba is 5 hours ahead of Porto Alegre. |
| Begusarai | +8:30 hours | Begusarai is 8 hours, 30 minutes ahead of Porto Alegre. |
| Beijing | +11:0 hours | Beijing is 11 hours ahead of Porto Alegre. |
| Beirut | +5:0 hours | Beirut is 5 hours ahead of Porto Alegre. |
| Belem | same time | There is no time difference between Belem and Porto Alegre. |
| Belfast | +3:0 hours | Belfast is 3 hours ahead of Porto Alegre. |
| Belgaum | +8:30 hours | Belgaum is 8 hours, 30 minutes ahead of Porto Alegre. |
| Belgrade | +4:0 hours | Belgrade is 4 hours ahead of Porto Alegre. |
| Belleville | -2:0 hours | Belleville is 2 hours behind Porto Alegre. |
| Belmopan | -3:0 hours | Belmopan is 3 hours behind Porto Alegre. |
| Belo Horizonte | same time | There is no time difference between Belo Horizonte and Porto Alegre. |
| Bend | -5:0 hours | Bend is 5 hours behind Porto Alegre. |
| Bendigo | * +14:0 hours | Bendigo is 14 hours ahead of Porto Alegre. |
| Benghazi | +5:0 hours | Benghazi is 5 hours ahead of Porto Alegre. |
| Benin City | +4:0 hours | Benin City is 4 hours ahead of Porto Alegre. |
| Benxi | +11:0 hours | Benxi is 11 hours ahead of Porto Alegre. |
| Bergen | +4:0 hours | Bergen is 4 hours ahead of Porto Alegre. |
| Bergisch Gladbach | +4:0 hours | Bergisch Gladbach is 4 hours ahead of Porto Alegre. |
| Berhampur | +8:30 hours | Berhampur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Berkeley | -5:0 hours | Berkeley is 5 hours behind Porto Alegre. |
| Berlin | +4:0 hours | Berlin is 4 hours ahead of Porto Alegre. |
| Bern | +4:0 hours | Bern is 4 hours ahead of Porto Alegre. |
| Besancon | +4:0 hours | Besancon is 4 hours ahead of Porto Alegre. |
| Bethesda | -2:0 hours | Bethesda is 2 hours behind Porto Alegre. |
| Bethlehem | +5:0 hours | Bethlehem is 5 hours ahead of Porto Alegre. |
| Bettiah | +8:30 hours | Bettiah is 8 hours, 30 minutes ahead of Porto Alegre. |
| Betul | +8:30 hours | Betul is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhabua | +8:30 hours | Bhabua is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhadrachalam | +8:30 hours | Bhadrachalam is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhadrak | +8:30 hours | Bhadrak is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhagalpur | +8:30 hours | Bhagalpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhandara | +8:30 hours | Bhandara is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bharatpur | +8:30 hours | Bharatpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bharuch | +8:30 hours | Bharuch is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhavnagar | +8:30 hours | Bhavnagar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhawanipatna | +8:30 hours | Bhawanipatna is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhilwara | +8:30 hours | Bhilwara is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhind | +8:30 hours | Bhind is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhinga | +8:30 hours | Bhinga is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhopal | +8:30 hours | Bhopal is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhubaneshwar | +8:30 hours | Bhubaneshwar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhubaneswar | +8:30 hours | Bhubaneswar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bhuj | +8:30 hours | Bhuj is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bialystok | +4:0 hours | Bialystok is 4 hours ahead of Porto Alegre. |
| Biel | +4:0 hours | Biel is 4 hours ahead of Porto Alegre. |
| Bielefeld | +4:0 hours | Bielefeld is 4 hours ahead of Porto Alegre. |
| Bielsko-Biala | +4:0 hours | Bielsko-Biala is 4 hours ahead of Porto Alegre. |
| Bijapur | +8:30 hours | Bijapur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bijnor | +8:30 hours | Bijnor is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bikaner | +8:30 hours | Bikaner is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bilbao | +4:0 hours | Bilbao is 4 hours ahead of Porto Alegre. |
| Billings | -4:0 hours | Billings is 4 hours behind Porto Alegre. |
| Binghamton | -2:0 hours | Binghamton is 2 hours behind Porto Alegre. |
| Birmingham (UK) | +3:0 hours | Birmingham (UK) is 3 hours ahead of Porto Alegre. |
| Birmingham (US) | -3:0 hours | Birmingham (US) is 3 hours behind Porto Alegre. |
| Bischofshofen | +4:0 hours | Bischofshofen is 4 hours ahead of Porto Alegre. |
| Bishkek | +9:0 hours | Bishkek is 9 hours ahead of Porto Alegre. |
| Bismarck | -3:0 hours | Bismarck is 3 hours behind Porto Alegre. |
| Bissau | +3:0 hours | Bissau is 3 hours ahead of Porto Alegre. |
| Blackburn | +3:0 hours | Blackburn is 3 hours ahead of Porto Alegre. |
| Blackpool | +3:0 hours | Blackpool is 3 hours ahead of Porto Alegre. |
| Blacktown | * +14:0 hours | Blacktown is 14 hours ahead of Porto Alegre. |
| Blantyre | +5:0 hours | Blantyre is 5 hours ahead of Porto Alegre. |
| Blenheim | * +16:0 hours | Blenheim is 16 hours ahead of Porto Alegre. |
| Bloemfontein | +5:0 hours | Bloemfontein is 5 hours ahead of Porto Alegre. |
| Bloomington | -3:0 hours | Bloomington is 3 hours behind Porto Alegre. |
| Blumenau | same time | There is no time difference between Blumenau and Porto Alegre. |
| Bnei Brak | +5:0 hours | Bnei Brak is 5 hours ahead of Porto Alegre. |
| Boa Vista | -1:0 hour | Boa Vista is 1 hour behind Porto Alegre. |
| Bochum | +4:0 hours | Bochum is 4 hours ahead of Porto Alegre. |
| Bodo | +4:0 hours | Bodo is 4 hours ahead of Porto Alegre. |
| Bogor | +10:0 hours | Bogor is 10 hours ahead of Porto Alegre. |
| Bogota | -2:0 hours | Bogota is 2 hours behind Porto Alegre. |
| Boise | -4:0 hours | Boise is 4 hours behind Porto Alegre. |
| Bokaro Steel City | +8:30 hours | Bokaro Steel City is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bologna | +4:0 hours | Bologna is 4 hours ahead of Porto Alegre. |
| Bolton | +3:0 hours | Bolton is 3 hours ahead of Porto Alegre. |
| Bolzano | +4:0 hours | Bolzano is 4 hours ahead of Porto Alegre. |
| Bonn | +4:0 hours | Bonn is 4 hours ahead of Porto Alegre. |
| Boras | +4:0 hours | Boras is 4 hours ahead of Porto Alegre. |
| Bordeaux | +4:0 hours | Bordeaux is 4 hours ahead of Porto Alegre. |
| Boston | -2:0 hours | Boston is 2 hours behind Porto Alegre. |
| Bottrop | +4:0 hours | Bottrop is 4 hours ahead of Porto Alegre. |
| Boudh | +8:30 hours | Boudh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Boulder | -4:0 hours | Boulder is 4 hours behind Porto Alegre. |
| Boulogne-Billancourt | +4:0 hours | Boulogne-Billancourt is 4 hours ahead of Porto Alegre. |
| Bournemouth | +3:0 hours | Bournemouth is 3 hours ahead of Porto Alegre. |
| Brades | -1:0 hour | Brades is 1 hour behind Porto Alegre. |
| Bradford | +3:0 hours | Bradford is 3 hours ahead of Porto Alegre. |
| Braga | +3:0 hours | Braga is 3 hours ahead of Porto Alegre. |
| Braila | +5:0 hours | Braila is 5 hours ahead of Porto Alegre. |
| Brampton | -2:0 hours | Brampton is 2 hours behind Porto Alegre. |
| Brandenburg an der Havel | +4:0 hours | Brandenburg an der Havel is 4 hours ahead of Porto Alegre. |
| Brandon | -3:0 hours | Brandon is 3 hours behind Porto Alegre. |
| Brantford | -2:0 hours | Brantford is 2 hours behind Porto Alegre. |
| Brasilia | same time | There is no time difference between Brasilia and Porto Alegre. |
| Bratislava | +4:0 hours | Bratislava is 4 hours ahead of Porto Alegre. |
| Braunschweig | +4:0 hours | Braunschweig is 4 hours ahead of Porto Alegre. |
| Brazzaville | +4:0 hours | Brazzaville is 4 hours ahead of Porto Alegre. |
| Breda | +4:0 hours | Breda is 4 hours ahead of Porto Alegre. |
| Bregenz | +4:0 hours | Bregenz is 4 hours ahead of Porto Alegre. |
| Bremen | +4:0 hours | Bremen is 4 hours ahead of Porto Alegre. |
| Bremerhaven | +4:0 hours | Bremerhaven is 4 hours ahead of Porto Alegre. |
| Brest | +4:0 hours | Brest is 4 hours ahead of Porto Alegre. |
| Bridgeport | -2:0 hours | Bridgeport is 2 hours behind Porto Alegre. |
| Bridgetown | -1:0 hour | Bridgetown is 1 hour behind Porto Alegre. |
| Bridgewater | -2:0 hours | Bridgewater is 2 hours behind Porto Alegre. |
| Brighton | +3:0 hours | Brighton is 3 hours ahead of Porto Alegre. |
| Brisbane | +13:0 hours | Brisbane is 13 hours ahead of Porto Alegre. |
| Bristol | +3:0 hours | Bristol is 3 hours ahead of Porto Alegre. |
| Bristol (US) | -2:0 hours | Bristol (US) is 2 hours behind Porto Alegre. |
| Brno | +4:0 hours | Brno is 4 hours ahead of Porto Alegre. |
| Brockton | -2:0 hours | Brockton is 2 hours behind Porto Alegre. |
| Brownsville | -3:0 hours | Brownsville is 3 hours behind Porto Alegre. |
| Bruges | +4:0 hours | Bruges is 4 hours ahead of Porto Alegre. |
| Brussels | +4:0 hours | Brussels is 4 hours ahead of Porto Alegre. |
| Bucaramanga | -2:0 hours | Bucaramanga is 2 hours behind Porto Alegre. |
| Bucharest | +5:0 hours | Bucharest is 5 hours ahead of Porto Alegre. |
| Budapest | +4:0 hours | Budapest is 4 hours ahead of Porto Alegre. |
| Buenaventura | -2:0 hours | Buenaventura is 2 hours behind Porto Alegre. |
| Buenos Aires | same time | There is no time difference between Buenos Aires and Porto Alegre. |
| Buffalo | -2:0 hours | Buffalo is 2 hours behind Porto Alegre. |
| Bujumbura | +5:0 hours | Bujumbura is 5 hours ahead of Porto Alegre. |
| Bulandshahr | +8:30 hours | Bulandshahr is 8 hours, 30 minutes ahead of Porto Alegre. |
| Buldhana | +8:30 hours | Buldhana is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bunbury | +11:0 hours | Bunbury is 11 hours ahead of Porto Alegre. |
| Bundaberg | +13:0 hours | Bundaberg is 13 hours ahead of Porto Alegre. |
| Bundi | +8:30 hours | Bundi is 8 hours, 30 minutes ahead of Porto Alegre. |
| Burbank | -5:0 hours | Burbank is 5 hours behind Porto Alegre. |
| Burgas | +5:0 hours | Burgas is 5 hours ahead of Porto Alegre. |
| Burhanpur | +8:30 hours | Burhanpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Burlington | -2:0 hours | Burlington is 2 hours behind Porto Alegre. |
| Burnaby | -5:0 hours | Burnaby is 5 hours behind Porto Alegre. |
| Bursa | +6:0 hours | Bursa is 6 hours ahead of Porto Alegre. |
| Busan | +12:0 hours | Busan is 12 hours ahead of Porto Alegre. |
| Bushehr | +6:30 hours | Bushehr is 6 hours, 30 minutes ahead of Porto Alegre. |
| Butte | -4:0 hours | Butte is 4 hours behind Porto Alegre. |
| Buxar | +8:30 hours | Buxar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Bydgoszcz | +4:0 hours | Bydgoszcz is 4 hours ahead of Porto Alegre. |
| Bytom | +4:0 hours | Bytom is 4 hours ahead of Porto Alegre. |
| Cabo San Lucas | -4:0 hours | Cabo San Lucas is 4 hours behind Porto Alegre. |
| Caen | +4:0 hours | Caen is 4 hours ahead of Porto Alegre. |
| Cagliari | +4:0 hours | Cagliari is 4 hours ahead of Porto Alegre. |
| Cairns | +13:0 hours | Cairns is 13 hours ahead of Porto Alegre. |
| Cairo | +5:0 hours | Cairo is 5 hours ahead of Porto Alegre. |
| Caledon | -2:0 hours | Caledon is 2 hours behind Porto Alegre. |
| Calgary | -4:0 hours | Calgary is 4 hours behind Porto Alegre. |
| Cali | -2:0 hours | Cali is 2 hours behind Porto Alegre. |
| Callao | -2:0 hours | Callao is 2 hours behind Porto Alegre. |
| Cambridge | +3:0 hours | Cambridge is 3 hours ahead of Porto Alegre. |
| Cambridge (Canada) | -2:0 hours | Cambridge (Canada) is 2 hours behind Porto Alegre. |
| Cambridge (US) | -2:0 hours | Cambridge (US) is 2 hours behind Porto Alegre. |
| Cambridge Bay | -4:0 hours | Cambridge Bay is 4 hours behind Porto Alegre. |
| Campbell River | -5:0 hours | Campbell River is 5 hours behind Porto Alegre. |
| Campeche | -3:0 hours | Campeche is 3 hours behind Porto Alegre. |
| Campina Grande | same time | There is no time difference between Campina Grande and Porto Alegre. |
| Campinas | same time | There is no time difference between Campinas and Porto Alegre. |
| Campo Grande | -1:0 hour | Campo Grande is 1 hour behind Porto Alegre. |
| Campos | same time | There is no time difference between Campos and Porto Alegre. |
| Camrose | -4:0 hours | Camrose is 4 hours behind Porto Alegre. |
| Canberra | * +14:0 hours | Canberra is 14 hours ahead of Porto Alegre. |
| Cancun | -2:0 hours | Cancun is 2 hours behind Porto Alegre. |
| Canton (US) | -2:0 hours | Canton (US) is 2 hours behind Porto Alegre. |
| Canvey Island | +3:0 hours | Canvey Island is 3 hours ahead of Porto Alegre. |
| Cape Breton Regional Municipality | -1:0 hour | Cape Breton Regional Municipality is 1 hour behind Porto Alegre. |
| Cape Canaveral | -2:0 hours | Cape Canaveral is 2 hours behind Porto Alegre. |
| Cape Coral | -2:0 hours | Cape Coral is 2 hours behind Porto Alegre. |
| Cape Dorset | -2:0 hours | Cape Dorset is 2 hours behind Porto Alegre. |
| Cape Town | +5:0 hours | Cape Town is 5 hours ahead of Porto Alegre. |
| Caracas | -1:0 hour | Caracas is 1 hour behind Porto Alegre. |
| Cardiff | +3:0 hours | Cardiff is 3 hours ahead of Porto Alegre. |
| Carson City | -5:0 hours | Carson City is 5 hours behind Porto Alegre. |
| Cartagena | -2:0 hours | Cartagena is 2 hours behind Porto Alegre. |
| Caruaru | same time | There is no time difference between Caruaru and Porto Alegre. |
| Casablanca | +4:0 hours | Casablanca is 4 hours ahead of Porto Alegre. |
| Cascais | +3:0 hours | Cascais is 3 hours ahead of Porto Alegre. |
| Casper | -4:0 hours | Casper is 4 hours behind Porto Alegre. |
| Castries | -1:0 hour | Castries is 1 hour behind Porto Alegre. |
| Catamarca | same time | There is no time difference between Catamarca and Porto Alegre. |
| Catania | +4:0 hours | Catania is 4 hours ahead of Porto Alegre. |
| Caversham | +3:0 hours | Caversham is 3 hours ahead of Porto Alegre. |
| Caxias do Sul | same time | There is no time difference between Caxias do Sul and Porto Alegre. |
| Cayenne | same time | There is no time difference between Cayenne and Porto Alegre. |
| Cebu City | +11:0 hours | Cebu City is 11 hours ahead of Porto Alegre. |
| Cedar Rapids | -3:0 hours | Cedar Rapids is 3 hours behind Porto Alegre. |
| Celje | +4:0 hours | Celje is 4 hours ahead of Porto Alegre. |
| Center | -3:0 hours | Center is 3 hours behind Porto Alegre. |
| Ceuta | +4:0 hours | Ceuta is 4 hours ahead of Porto Alegre. |
| Chandauli | +8:30 hours | Chandauli is 8 hours, 30 minutes ahead of Porto Alegre. |
| Chandigarh | +8:30 hours | Chandigarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Chandler | -4:0 hours | Chandler is 4 hours behind Porto Alegre. |
| Chandpur | +9:0 hours | Chandpur is 9 hours ahead of Porto Alegre. |
| Chandrapur | +8:30 hours | Chandrapur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Changchun | +11:0 hours | Changchun is 11 hours ahead of Porto Alegre. |
| Changsha | +11:0 hours | Changsha is 11 hours ahead of Porto Alegre. |
| Charleroi | +4:0 hours | Charleroi is 4 hours ahead of Porto Alegre. |
| Charleston | -2:0 hours | Charleston is 2 hours behind Porto Alegre. |
| Charleston (SC) | -2:0 hours | Charleston (SC) is 2 hours behind Porto Alegre. |
| Charlotte | -2:0 hours | Charlotte is 2 hours behind Porto Alegre. |
| Charlottetown | -1:0 hour | Charlottetown is 1 hour behind Porto Alegre. |
| Chatham Island | * +16:45 hours | Chatham Island is 16 hours, 45 minutes ahead of Porto Alegre. |
| Chatham-Kent | -2:0 hours | Chatham-Kent is 2 hours behind Porto Alegre. |
| Chattanooga | -2:0 hours | Chattanooga is 2 hours behind Porto Alegre. |
| Cheltenham | +3:0 hours | Cheltenham is 3 hours ahead of Porto Alegre. |
| Chelyabinsk | +8:0 hours | Chelyabinsk is 8 hours ahead of Porto Alegre. |
| Chemnitz | +4:0 hours | Chemnitz is 4 hours ahead of Porto Alegre. |
| Chengdu | +11:0 hours | Chengdu is 11 hours ahead of Porto Alegre. |
| Chennai | +8:30 hours | Chennai is 8 hours, 30 minutes ahead of Porto Alegre. |
| Cherrapunji | +8:30 hours | Cherrapunji is 8 hours, 30 minutes ahead of Porto Alegre. |
| Chesapeake | -2:0 hours | Chesapeake is 2 hours behind Porto Alegre. |
| Chester | +3:0 hours | Chester is 3 hours ahead of Porto Alegre. |
| Cheyenne | -4:0 hours | Cheyenne is 4 hours behind Porto Alegre. |
| Chhapra | +8:30 hours | Chhapra is 8 hours, 30 minutes ahead of Porto Alegre. |
| Chhatarpur | +8:30 hours | Chhatarpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Chhatrapur | +8:30 hours | Chhatrapur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Chhindwara | +8:30 hours | Chhindwara is 8 hours, 30 minutes ahead of Porto Alegre. |
| Chiang Mai | +10:0 hours | Chiang Mai is 10 hours ahead of Porto Alegre. |
| Chiang Rai | +10:0 hours | Chiang Rai is 10 hours ahead of Porto Alegre. |
| Chicago | -3:0 hours | Chicago is 3 hours behind Porto Alegre. |
| Chiclayo | -2:0 hours | Chiclayo is 2 hours behind Porto Alegre. |
| Chihuahua | -4:0 hours | Chihuahua is 4 hours behind Porto Alegre. |
| Chilliwack | -5:0 hours | Chilliwack is 5 hours behind Porto Alegre. |
| Chitrakuta | +8:30 hours | Chitrakuta is 8 hours, 30 minutes ahead of Porto Alegre. |
| Chittagong | +9:0 hours | Chittagong is 9 hours ahead of Porto Alegre. |
| Chittorgarh | +8:30 hours | Chittorgarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Choibalsan | +11:0 hours | Choibalsan is 11 hours ahead of Porto Alegre. |
| Chongqing | +11:0 hours | Chongqing is 11 hours ahead of Porto Alegre. |
| Chorzow | +4:0 hours | Chorzow is 4 hours ahead of Porto Alegre. |
| Christchurch | * +16:0 hours | Christchurch is 16 hours ahead of Porto Alegre. |
| Chula Vista | -5:0 hours | Chula Vista is 5 hours behind Porto Alegre. |
| Chur | +4:0 hours | Chur is 4 hours ahead of Porto Alegre. |
| Churu | +8:30 hours | Churu is 8 hours, 30 minutes ahead of Porto Alegre. |
| Cincinnati | -2:0 hours | Cincinnati is 2 hours behind Porto Alegre. |
| Cirebon | +10:0 hours | Cirebon is 10 hours ahead of Porto Alegre. |
| Citrus Heights | -5:0 hours | Citrus Heights is 5 hours behind Porto Alegre. |
| Ciudad Juarez | -4:0 hours | Ciudad Juarez is 4 hours behind Porto Alegre. |
| Clarington | -2:0 hours | Clarington is 2 hours behind Porto Alegre. |
| Clarksville | -3:0 hours | Clarksville is 3 hours behind Porto Alegre. |
| Clearwater | -2:0 hours | Clearwater is 2 hours behind Porto Alegre. |
| Clermont-Ferrand | +4:0 hours | Clermont-Ferrand is 4 hours ahead of Porto Alegre. |
| Cleveland | -2:0 hours | Cleveland is 2 hours behind Porto Alegre. |
| Cluj-Napoca | +5:0 hours | Cluj-Napoca is 5 hours ahead of Porto Alegre. |
| Cochabamba | -1:0 hour | Cochabamba is 1 hour behind Porto Alegre. |
| Cocoa Beach | -2:0 hours | Cocoa Beach is 2 hours behind Porto Alegre. |
| Coffs Harbour | * +14:0 hours | Coffs Harbour is 14 hours ahead of Porto Alegre. |
| Coimbatore | +8:30 hours | Coimbatore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Coimbra | +3:0 hours | Coimbra is 3 hours ahead of Porto Alegre. |
| Colchester | +3:0 hours | Colchester is 3 hours ahead of Porto Alegre. |
| Colchester County | -1:0 hour | Colchester County is 1 hour behind Porto Alegre. |
| Cologne | +4:0 hours | Cologne is 4 hours ahead of Porto Alegre. |
| Colombo | +8:30 hours | Colombo is 8 hours, 30 minutes ahead of Porto Alegre. |
| Colon | -2:0 hours | Colon is 2 hours behind Porto Alegre. |
| Colonia | +13:0 hours | Colonia is 13 hours ahead of Porto Alegre. |
| Colorado Springs | -4:0 hours | Colorado Springs is 4 hours behind Porto Alegre. |
| Columbia | -2:0 hours | Columbia is 2 hours behind Porto Alegre. |
| Columbus | -2:0 hours | Columbus is 2 hours behind Porto Alegre. |
| Columbus (GA) | -2:0 hours | Columbus (GA) is 2 hours behind Porto Alegre. |
| Comilla | +9:0 hours | Comilla is 9 hours ahead of Porto Alegre. |
| Comodoro Rivadavia | same time | There is no time difference between Comodoro Rivadavia and Porto Alegre. |
| Compton | -5:0 hours | Compton is 5 hours behind Porto Alegre. |
| Conakry | +3:0 hours | Conakry is 3 hours ahead of Porto Alegre. |
| Concepcion | * same time | There is no time difference between Concepcion and Porto Alegre. |
| Conception Bay South | -0:30 minutes | Conception Bay South is 30 minutes behind Porto Alegre. |
| Concord | -2:0 hours | Concord is 2 hours behind Porto Alegre. |
| Constanta | +5:0 hours | Constanta is 5 hours ahead of Porto Alegre. |
| Cooch Behar | +8:30 hours | Cooch Behar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Copenhagen | +4:0 hours | Copenhagen is 4 hours ahead of Porto Alegre. |
| Coquitlam | -5:0 hours | Coquitlam is 5 hours behind Porto Alegre. |
| Coral Harbour | -2:0 hours | Coral Harbour is 2 hours behind Porto Alegre. |
| Cordoba | +4:0 hours | Cordoba is 4 hours ahead of Porto Alegre. |
| Cordoba (Argentina) | same time | There is no time difference between Cordoba (Argentina) and Porto Alegre. |
| Cork | +3:0 hours | Cork is 3 hours ahead of Porto Alegre. |
| Corner Brook | -0:30 minutes | Corner Brook is 30 minutes behind Porto Alegre. |
| Cornwall | -2:0 hours | Cornwall is 2 hours behind Porto Alegre. |
| Corpus Christi | -3:0 hours | Corpus Christi is 3 hours behind Porto Alegre. |
| Corrientes | same time | There is no time difference between Corrientes and Porto Alegre. |
| Corvallis | -5:0 hours | Corvallis is 5 hours behind Porto Alegre. |
| Costa Mesa | -5:0 hours | Costa Mesa is 5 hours behind Porto Alegre. |
| Cotonou | +4:0 hours | Cotonou is 4 hours ahead of Porto Alegre. |
| Cottbus | +4:0 hours | Cottbus is 4 hours ahead of Porto Alegre. |
| Coventry | +3:0 hours | Coventry is 3 hours ahead of Porto Alegre. |
| Cozumel | -2:0 hours | Cozumel is 2 hours behind Porto Alegre. |
| Cranbrook | -4:0 hours | Cranbrook is 4 hours behind Porto Alegre. |
| Crawley | +3:0 hours | Crawley is 3 hours ahead of Porto Alegre. |
| Creighton | -3:0 hours | Creighton is 3 hours behind Porto Alegre. |
| Creston | -5:0 hours | Creston is 5 hours behind Porto Alegre. |
| Criciuma | same time | There is no time difference between Criciuma and Porto Alegre. |
| Cucuta | -2:0 hours | Cucuta is 2 hours behind Porto Alegre. |
| Cuddalore | +8:30 hours | Cuddalore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Cuiaba | -1:0 hour | Cuiaba is 1 hour behind Porto Alegre. |
| Culiacan | -4:0 hours | Culiacan is 4 hours behind Porto Alegre. |
| Cumberland County | -1:0 hour | Cumberland County is 1 hour behind Porto Alegre. |
| Cupertino | -5:0 hours | Cupertino is 5 hours behind Porto Alegre. |
| Curitiba | same time | There is no time difference between Curitiba and Porto Alegre. |
| Cuttack | +8:30 hours | Cuttack is 8 hours, 30 minutes ahead of Porto Alegre. |
| Cuzco | -2:0 hours | Cuzco is 2 hours behind Porto Alegre. |
| Czestochowa | +4:0 hours | Czestochowa is 4 hours ahead of Porto Alegre. |
| Dabrowa Gornicza | +4:0 hours | Dabrowa Gornicza is 4 hours ahead of Porto Alegre. |
| Dakar | +3:0 hours | Dakar is 3 hours ahead of Porto Alegre. |
| Dalian | +11:0 hours | Dalian is 11 hours ahead of Porto Alegre. |
| Dallas | -3:0 hours | Dallas is 3 hours behind Porto Alegre. |
| Daly City | -5:0 hours | Daly City is 5 hours behind Porto Alegre. |
| Dalyan | +6:0 hours | Dalyan is 6 hours ahead of Porto Alegre. |
| Daman | +8:30 hours | Daman is 8 hours, 30 minutes ahead of Porto Alegre. |
| Damascus | +5:0 hours | Damascus is 5 hours ahead of Porto Alegre. |
| Dammam | +6:0 hours | Dammam is 6 hours ahead of Porto Alegre. |
| Damoh | +8:30 hours | Damoh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Danmarkshavn | +3:0 hours | Danmarkshavn is 3 hours ahead of Porto Alegre. |
| Dar es Salaam | +6:0 hours | Dar es Salaam is 6 hours ahead of Porto Alegre. |
| Daraa | +5:0 hours | Daraa is 5 hours ahead of Porto Alegre. |
| Darbhanga | +8:30 hours | Darbhanga is 8 hours, 30 minutes ahead of Porto Alegre. |
| Darjeeling | +8:30 hours | Darjeeling is 8 hours, 30 minutes ahead of Porto Alegre. |
| Darmstadt | +4:0 hours | Darmstadt is 4 hours ahead of Porto Alegre. |
| Darwin | +12:30 hours | Darwin is 12 hours, 30 minutes ahead of Porto Alegre. |
| Datia | +8:30 hours | Datia is 8 hours, 30 minutes ahead of Porto Alegre. |
| Datong | +11:0 hours | Datong is 11 hours ahead of Porto Alegre. |
| Dausa | +8:30 hours | Dausa is 8 hours, 30 minutes ahead of Porto Alegre. |
| Davanagere | +8:30 hours | Davanagere is 8 hours, 30 minutes ahead of Porto Alegre. |
| Davao | +11:0 hours | Davao is 11 hours ahead of Porto Alegre. |
| Davenport | -3:0 hours | Davenport is 3 hours behind Porto Alegre. |
| Davos | +4:0 hours | Davos is 4 hours ahead of Porto Alegre. |
| Dawson Creek | -4:0 hours | Dawson Creek is 4 hours behind Porto Alegre. |
| Dayton | -2:0 hours | Dayton is 2 hours behind Porto Alegre. |
| Daytona Beach | -2:0 hours | Daytona Beach is 2 hours behind Porto Alegre. |
| Debagarh | +8:30 hours | Debagarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Decatur | -3:0 hours | Decatur is 3 hours behind Porto Alegre. |
| Dehradun | +8:30 hours | Dehradun is 8 hours, 30 minutes ahead of Porto Alegre. |
| Delta | -5:0 hours | Delta is 5 hours behind Porto Alegre. |
| Denare Beach | -3:0 hours | Denare Beach is 3 hours behind Porto Alegre. |
| Denpasar | +11:0 hours | Denpasar is 11 hours ahead of Porto Alegre. |
| Denver | -4:0 hours | Denver is 4 hours behind Porto Alegre. |
| Deoghar | +8:30 hours | Deoghar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Deoria | +8:30 hours | Deoria is 8 hours, 30 minutes ahead of Porto Alegre. |
| Derby | +3:0 hours | Derby is 3 hours ahead of Porto Alegre. |
| Derry | +3:0 hours | Derry is 3 hours ahead of Porto Alegre. |
| Des Moines | -3:0 hours | Des Moines is 3 hours behind Porto Alegre. |
| Dessau-Rosslau | +4:0 hours | Dessau-Rosslau is 4 hours ahead of Porto Alegre. |
| Detroit | -2:0 hours | Detroit is 2 hours behind Porto Alegre. |
| Devonport | * +14:0 hours | Devonport is 14 hours ahead of Porto Alegre. |
| Dewas | +8:30 hours | Dewas is 8 hours, 30 minutes ahead of Porto Alegre. |
| Dhaka | +9:0 hours | Dhaka is 9 hours ahead of Porto Alegre. |
| Dhanbad | +8:30 hours | Dhanbad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Dhar | +8:30 hours | Dhar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Dharamshala | +8:30 hours | Dharamshala is 8 hours, 30 minutes ahead of Porto Alegre. |
| Dharmapuri | +8:30 hours | Dharmapuri is 8 hours, 30 minutes ahead of Porto Alegre. |
| Dhenkanal | +8:30 hours | Dhenkanal is 8 hours, 30 minutes ahead of Porto Alegre. |
| Dholpur | +8:30 hours | Dholpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Dhule | +8:30 hours | Dhule is 8 hours, 30 minutes ahead of Porto Alegre. |
| Dibrugarh | +8:30 hours | Dibrugarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Dieppe | -1:0 hour | Dieppe is 1 hour behind Porto Alegre. |
| Dijon | +4:0 hours | Dijon is 4 hours ahead of Porto Alegre. |
| Dili | +12:0 hours | Dili is 12 hours ahead of Porto Alegre. |
| Dimapur | +8:30 hours | Dimapur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Dindigul | +8:30 hours | Dindigul is 8 hours, 30 minutes ahead of Porto Alegre. |
| Dire Dawa | +6:0 hours | Dire Dawa is 6 hours ahead of Porto Alegre. |
| Dispur | +8:30 hours | Dispur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Djibouti | +6:0 hours | Djibouti is 6 hours ahead of Porto Alegre. |
| Dodoma | +6:0 hours | Dodoma is 6 hours ahead of Porto Alegre. |
| Doha | +6:0 hours | Doha is 6 hours ahead of Porto Alegre. |
| Dordrecht | +4:0 hours | Dordrecht is 4 hours ahead of Porto Alegre. |
| Dornbirn | +4:0 hours | Dornbirn is 4 hours ahead of Porto Alegre. |
| Dorsten | +4:0 hours | Dorsten is 4 hours ahead of Porto Alegre. |
| Dortmund | +4:0 hours | Dortmund is 4 hours ahead of Porto Alegre. |
| Douai | +4:0 hours | Douai is 4 hours ahead of Porto Alegre. |
| Douglas | +3:0 hours | Douglas is 3 hours ahead of Porto Alegre. |
| Dover | -2:0 hours | Dover is 2 hours behind Porto Alegre. |
| Downey | -5:0 hours | Downey is 5 hours behind Porto Alegre. |
| Drammen | +4:0 hours | Drammen is 4 hours ahead of Porto Alegre. |
| Dresden | +4:0 hours | Dresden is 4 hours ahead of Porto Alegre. |
| Drummondville | -2:0 hours | Drummondville is 2 hours behind Porto Alegre. |
| Dubai | +7:0 hours | Dubai is 7 hours ahead of Porto Alegre. |
| Dublin | +3:0 hours | Dublin is 3 hours ahead of Porto Alegre. |
| Dubrovnik | +4:0 hours | Dubrovnik is 4 hours ahead of Porto Alegre. |
| Dudley | +3:0 hours | Dudley is 3 hours ahead of Porto Alegre. |
| Duisburg | +4:0 hours | Duisburg is 4 hours ahead of Porto Alegre. |
| Dundalk | +3:0 hours | Dundalk is 3 hours ahead of Porto Alegre. |
| Dundee | +3:0 hours | Dundee is 3 hours ahead of Porto Alegre. |
| Dunedin | * +16:0 hours | Dunedin is 16 hours ahead of Porto Alegre. |
| Dungarpur | +8:30 hours | Dungarpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Durban | +5:0 hours | Durban is 5 hours ahead of Porto Alegre. |
| Duren | +4:0 hours | Duren is 4 hours ahead of Porto Alegre. |
| Durgapur | +8:30 hours | Durgapur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Durham | -2:0 hours | Durham is 2 hours behind Porto Alegre. |
| Dushanbe | +8:0 hours | Dushanbe is 8 hours ahead of Porto Alegre. |
| Dusseldorf | +4:0 hours | Dusseldorf is 4 hours ahead of Porto Alegre. |
| Dwarka | +8:30 hours | Dwarka is 8 hours, 30 minutes ahead of Porto Alegre. |
| East Hants | -1:0 hour | East Hants is 1 hour behind Porto Alegre. |
| East London | +5:0 hours | East London is 5 hours ahead of Porto Alegre. |
| Eastbourne | +3:0 hours | Eastbourne is 3 hours ahead of Porto Alegre. |
| Easter Island | * -2:0 hours | Easter Island is 2 hours behind Porto Alegre. |
| Ede | +4:0 hours | Ede is 4 hours ahead of Porto Alegre. |
| Edinburgh | +3:0 hours | Edinburgh is 3 hours ahead of Porto Alegre. |
| Edmonton | -4:0 hours | Edmonton is 4 hours behind Porto Alegre. |
| Edmundston | -1:0 hour | Edmundston is 1 hour behind Porto Alegre. |
| Eindhoven | +4:0 hours | Eindhoven is 4 hours ahead of Porto Alegre. |
| El Aaiun | +4:0 hours | El Aaiun is 4 hours ahead of Porto Alegre. |
| El Jadida | +4:0 hours | El Jadida is 4 hours ahead of Porto Alegre. |
| El Monte | -5:0 hours | El Monte is 5 hours behind Porto Alegre. |
| El Paso | -4:0 hours | El Paso is 4 hours behind Porto Alegre. |
| Elblag | +4:0 hours | Elblag is 4 hours ahead of Porto Alegre. |
| Elizabeth | -2:0 hours | Elizabeth is 2 hours behind Porto Alegre. |
| Eluru | +8:30 hours | Eluru is 8 hours, 30 minutes ahead of Porto Alegre. |
| Emmen | +4:0 hours | Emmen is 4 hours ahead of Porto Alegre. |
| Endeh | +11:0 hours | Endeh is 11 hours ahead of Porto Alegre. |
| Enschede | +4:0 hours | Enschede is 4 hours ahead of Porto Alegre. |
| Ensenada | -5:0 hours | Ensenada is 5 hours behind Porto Alegre. |
| Enugu | +4:0 hours | Enugu is 4 hours ahead of Porto Alegre. |
| Erfurt | +4:0 hours | Erfurt is 4 hours ahead of Porto Alegre. |
| Erie | -2:0 hours | Erie is 2 hours behind Porto Alegre. |
| Erlangen | +4:0 hours | Erlangen is 4 hours ahead of Porto Alegre. |
| Erode | +8:30 hours | Erode is 8 hours, 30 minutes ahead of Porto Alegre. |
| Esbjerg | +4:0 hours | Esbjerg is 4 hours ahead of Porto Alegre. |
| Esch-sur-Alzette | +4:0 hours | Esch-sur-Alzette is 4 hours ahead of Porto Alegre. |
| Escondido | -5:0 hours | Escondido is 5 hours behind Porto Alegre. |
| Esfahan | +6:30 hours | Esfahan is 6 hours, 30 minutes ahead of Porto Alegre. |
| Eskilstuna | +4:0 hours | Eskilstuna is 4 hours ahead of Porto Alegre. |
| Espoo | +5:0 hours | Espoo is 5 hours ahead of Porto Alegre. |
| Essen | +4:0 hours | Essen is 4 hours ahead of Porto Alegre. |
| Esslingen | +4:0 hours | Esslingen is 4 hours ahead of Porto Alegre. |
| Etah | +8:30 hours | Etah is 8 hours, 30 minutes ahead of Porto Alegre. |
| Etawah | +8:30 hours | Etawah is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ettelbruck | +4:0 hours | Ettelbruck is 4 hours ahead of Porto Alegre. |
| Eucla | +11:45 hours | Eucla is 11 hours, 45 minutes ahead of Porto Alegre. |
| Eugene | -5:0 hours | Eugene is 5 hours behind Porto Alegre. |
| Eupen | +4:0 hours | Eupen is 4 hours ahead of Porto Alegre. |
| Evansville | -3:0 hours | Evansville is 3 hours behind Porto Alegre. |
| Everett | -5:0 hours | Everett is 5 hours behind Porto Alegre. |
| Exeter | +3:0 hours | Exeter is 3 hours ahead of Porto Alegre. |
| Fairbanks | -6:0 hours | Fairbanks is 6 hours behind Porto Alegre. |
| Faisalabad | +8:0 hours | Faisalabad is 8 hours ahead of Porto Alegre. |
| Faizabad | +8:30 hours | Faizabad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Fakaofo | +17:0 hours | Fakaofo is 17 hours ahead of Porto Alegre. |
| Fall River | -2:0 hours | Fall River is 2 hours behind Porto Alegre. |
| Famagusta | +5:0 hours | Famagusta is 5 hours ahead of Porto Alegre. |
| Fargo | -3:0 hours | Fargo is 3 hours behind Porto Alegre. |
| Faridabad | +8:30 hours | Faridabad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Faridkot | +8:30 hours | Faridkot is 8 hours, 30 minutes ahead of Porto Alegre. |
| Faro | +3:0 hours | Faro is 3 hours ahead of Porto Alegre. |
| Fatehgarh | +8:30 hours | Fatehgarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Fatehgarh Sahib | +8:30 hours | Fatehgarh Sahib is 8 hours, 30 minutes ahead of Porto Alegre. |
| Fatehpur | +8:30 hours | Fatehpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Fayetteville | -2:0 hours | Fayetteville is 2 hours behind Porto Alegre. |
| Fazilka | +8:30 hours | Fazilka is 8 hours, 30 minutes ahead of Porto Alegre. |
| Feira de Santana | same time | There is no time difference between Feira de Santana and Porto Alegre. |
| Fernando de Noronha | +1:0 hour | Fernando de Noronha is 1 hour ahead of Porto Alegre. |
| Fes | +4:0 hours | Fes is 4 hours ahead of Porto Alegre. |
| Firozabad | +8:30 hours | Firozabad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Firozpur | +8:30 hours | Firozpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Flagstaff | -4:0 hours | Flagstaff is 4 hours behind Porto Alegre. |
| Flensburg | +4:0 hours | Flensburg is 4 hours ahead of Porto Alegre. |
| Flint | -2:0 hours | Flint is 2 hours behind Porto Alegre. |
| Florence | +4:0 hours | Florence is 4 hours ahead of Porto Alegre. |
| Florianopolis | same time | There is no time difference between Florianopolis and Porto Alegre. |
| Foochow | +11:0 hours | Foochow is 11 hours ahead of Porto Alegre. |
| Formosa | same time | There is no time difference between Formosa and Porto Alegre. |
| Fort Bragg | -5:0 hours | Fort Bragg is 5 hours behind Porto Alegre. |
| Fort Collins | -4:0 hours | Fort Collins is 4 hours behind Porto Alegre. |
| Fort Frances | -3:0 hours | Fort Frances is 3 hours behind Porto Alegre. |
| Fort Lauderdale | -2:0 hours | Fort Lauderdale is 2 hours behind Porto Alegre. |
| Fort Simpson | -4:0 hours | Fort Simpson is 4 hours behind Porto Alegre. |
| Fort Smith | -4:0 hours | Fort Smith is 4 hours behind Porto Alegre. |
| Fort Smith (US) | -3:0 hours | Fort Smith (US) is 3 hours behind Porto Alegre. |
| Fort Wayne | -2:0 hours | Fort Wayne is 2 hours behind Porto Alegre. |
| Fort Worth | -3:0 hours | Fort Worth is 3 hours behind Porto Alegre. |
| Fort-de-France | -1:0 hour | Fort-de-France is 1 hour behind Porto Alegre. |
| Fortaleza | same time | There is no time difference between Fortaleza and Porto Alegre. |
| Frankfort | -2:0 hours | Frankfort is 2 hours behind Porto Alegre. |
| Frankfurt | +4:0 hours | Frankfurt is 4 hours ahead of Porto Alegre. |
| Frankfurt (Oder) | +4:0 hours | Frankfurt (Oder) is 4 hours ahead of Porto Alegre. |
| Fredericton | -1:0 hour | Fredericton is 1 hour behind Porto Alegre. |
| Fredrikstad | +4:0 hours | Fredrikstad is 4 hours ahead of Porto Alegre. |
| Freehold | -2:0 hours | Freehold is 2 hours behind Porto Alegre. |
| Freetown | +3:0 hours | Freetown is 3 hours ahead of Porto Alegre. |
| Freiburg | +4:0 hours | Freiburg is 4 hours ahead of Porto Alegre. |
| Fremont | -5:0 hours | Fremont is 5 hours behind Porto Alegre. |
| French Lick | -2:0 hours | French Lick is 2 hours behind Porto Alegre. |
| Fresnillo | -3:0 hours | Fresnillo is 3 hours behind Porto Alegre. |
| Fresno | -5:0 hours | Fresno is 5 hours behind Porto Alegre. |
| Fribourg | +4:0 hours | Fribourg is 4 hours ahead of Porto Alegre. |
| Fujairah | +7:0 hours | Fujairah is 7 hours ahead of Porto Alegre. |
| Fukuoka | +12:0 hours | Fukuoka is 12 hours ahead of Porto Alegre. |
| Fukushima | +12:0 hours | Fukushima is 12 hours ahead of Porto Alegre. |
| Fulda | +4:0 hours | Fulda is 4 hours ahead of Porto Alegre. |
| Fullerton | -5:0 hours | Fullerton is 5 hours behind Porto Alegre. |
| Funafuti | +15:0 hours | Funafuti is 15 hours ahead of Porto Alegre. |
| Funchal | +3:0 hours | Funchal is 3 hours ahead of Porto Alegre. |
| Furth | +4:0 hours | Furth is 4 hours ahead of Porto Alegre. |
| Fushun | +11:0 hours | Fushun is 11 hours ahead of Porto Alegre. |
| Gaborone | +5:0 hours | Gaborone is 5 hours ahead of Porto Alegre. |
| Gadchiroli | +8:30 hours | Gadchiroli is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gainesville | -2:0 hours | Gainesville is 2 hours behind Porto Alegre. |
| Galapagos Islands | -3:0 hours | Galapagos Islands is 3 hours behind Porto Alegre. |
| Galle | +8:30 hours | Galle is 8 hours, 30 minutes ahead of Porto Alegre. |
| Galveston | -3:0 hours | Galveston is 3 hours behind Porto Alegre. |
| Galway | +3:0 hours | Galway is 3 hours ahead of Porto Alegre. |
| Gambier Islands | -6:0 hours | Gambier Islands is 6 hours behind Porto Alegre. |
| Gander | -0:30 minutes | Gander is 30 minutes behind Porto Alegre. |
| Gandhidham | +8:30 hours | Gandhidham is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gandhinagar | +8:30 hours | Gandhinagar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ganganagar | +8:30 hours | Ganganagar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gangtok | +8:30 hours | Gangtok is 8 hours, 30 minutes ahead of Porto Alegre. |
| Garanhuns | same time | There is no time difference between Garanhuns and Porto Alegre. |
| Garden Grove | -5:0 hours | Garden Grove is 5 hours behind Porto Alegre. |
| Garland | -3:0 hours | Garland is 3 hours behind Porto Alegre. |
| Gary | -3:0 hours | Gary is 3 hours behind Porto Alegre. |
| Gatineau | -2:0 hours | Gatineau is 2 hours behind Porto Alegre. |
| Gavle | +4:0 hours | Gavle is 4 hours ahead of Porto Alegre. |
| Gaya | +8:30 hours | Gaya is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gaza | +5:0 hours | Gaza is 5 hours ahead of Porto Alegre. |
| Gdansk | +4:0 hours | Gdansk is 4 hours ahead of Porto Alegre. |
| Gdynia | +4:0 hours | Gdynia is 4 hours ahead of Porto Alegre. |
| Geelong | * +14:0 hours | Geelong is 14 hours ahead of Porto Alegre. |
| Gelibolu | +6:0 hours | Gelibolu is 6 hours ahead of Porto Alegre. |
| Gelsenkirchen | +4:0 hours | Gelsenkirchen is 4 hours ahead of Porto Alegre. |
| Geneva | +4:0 hours | Geneva is 4 hours ahead of Porto Alegre. |
| Genoa | +4:0 hours | Genoa is 4 hours ahead of Porto Alegre. |
| George Town | +11:0 hours | George Town is 11 hours ahead of Porto Alegre. |
| George Town(Cayman Islands) | -2:0 hours | George Town(Cayman Islands) is 2 hours behind Porto Alegre. |
| Georgetown | -1:0 hour | Georgetown is 1 hour behind Porto Alegre. |
| Gera | +4:0 hours | Gera is 4 hours ahead of Porto Alegre. |
| Geraldton | +11:0 hours | Geraldton is 11 hours ahead of Porto Alegre. |
| Germantown | -2:0 hours | Germantown is 2 hours behind Porto Alegre. |
| Ghaziabad | +8:30 hours | Ghaziabad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ghazipur | +8:30 hours | Ghazipur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ghazni | +7:30 hours | Ghazni is 7 hours, 30 minutes ahead of Porto Alegre. |
| Ghent | +4:0 hours | Ghent is 4 hours ahead of Porto Alegre. |
| Gibraltar | +4:0 hours | Gibraltar is 4 hours ahead of Porto Alegre. |
| Giessen | +4:0 hours | Giessen is 4 hours ahead of Porto Alegre. |
| Giridih | +8:30 hours | Giridih is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gisborne | * +16:0 hours | Gisborne is 16 hours ahead of Porto Alegre. |
| Glasgow | +3:0 hours | Glasgow is 3 hours ahead of Porto Alegre. |
| Glendale | -5:0 hours | Glendale is 5 hours behind Porto Alegre. |
| Glendale (AZ) | -4:0 hours | Glendale (AZ) is 4 hours behind Porto Alegre. |
| Glennallen | -6:0 hours | Glennallen is 6 hours behind Porto Alegre. |
| Gliwice | +4:0 hours | Gliwice is 4 hours ahead of Porto Alegre. |
| Gloucester | +3:0 hours | Gloucester is 3 hours ahead of Porto Alegre. |
| Glyfada | +5:0 hours | Glyfada is 5 hours ahead of Porto Alegre. |
| Goiania | same time | There is no time difference between Goiania and Porto Alegre. |
| Gold Coast | +13:0 hours | Gold Coast is 13 hours ahead of Porto Alegre. |
| Gonda | +8:30 hours | Gonda is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gondia | +8:30 hours | Gondia is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gopalganj | +8:30 hours | Gopalganj is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gorakhpur | +8:30 hours | Gorakhpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gorzow Wielkopolski | +4:0 hours | Gorzow Wielkopolski is 4 hours ahead of Porto Alegre. |
| Gothenburg | +4:0 hours | Gothenburg is 4 hours ahead of Porto Alegre. |
| Gottingen | +4:0 hours | Gottingen is 4 hours ahead of Porto Alegre. |
| Governador Valadares | same time | There is no time difference between Governador Valadares and Porto Alegre. |
| Grahamstown | +5:0 hours | Grahamstown is 5 hours ahead of Porto Alegre. |
| Granada | +4:0 hours | Granada is 4 hours ahead of Porto Alegre. |
| Granby | -2:0 hours | Granby is 2 hours behind Porto Alegre. |
| Grand Falls-Windsor | -0:30 minutes | Grand Falls-Windsor is 30 minutes behind Porto Alegre. |
| Grand Island | -3:0 hours | Grand Island is 3 hours behind Porto Alegre. |
| Grand Junction | -4:0 hours | Grand Junction is 4 hours behind Porto Alegre. |
| Grand Prairie | -3:0 hours | Grand Prairie is 3 hours behind Porto Alegre. |
| Grand Rapids | -2:0 hours | Grand Rapids is 2 hours behind Porto Alegre. |
| Grande Prairie | -4:0 hours | Grande Prairie is 4 hours behind Porto Alegre. |
| Graz | +4:0 hours | Graz is 4 hours ahead of Porto Alegre. |
| Greater Sudbury | -2:0 hours | Greater Sudbury is 2 hours behind Porto Alegre. |
| Green Bay | -3:0 hours | Green Bay is 3 hours behind Porto Alegre. |
| Greensboro | -2:0 hours | Greensboro is 2 hours behind Porto Alegre. |
| Greenville | -2:0 hours | Greenville is 2 hours behind Porto Alegre. |
| Greenwich Borough | +3:0 hours | Greenwich Borough is 3 hours ahead of Porto Alegre. |
| Grenoble | +4:0 hours | Grenoble is 4 hours ahead of Porto Alegre. |
| Greymouth | * +16:0 hours | Greymouth is 16 hours ahead of Porto Alegre. |
| Groningen | +4:0 hours | Groningen is 4 hours ahead of Porto Alegre. |
| Grudziadz | +4:0 hours | Grudziadz is 4 hours ahead of Porto Alegre. |
| Guadalajara | -3:0 hours | Guadalajara is 3 hours behind Porto Alegre. |
| Guam | +13:0 hours | Guam is 13 hours ahead of Porto Alegre. |
| Guatemala | -3:0 hours | Guatemala is 3 hours behind Porto Alegre. |
| Guayaquil | -2:0 hours | Guayaquil is 2 hours behind Porto Alegre. |
| Guelph | -2:0 hours | Guelph is 2 hours behind Porto Alegre. |
| Guilin | +11:0 hours | Guilin is 11 hours ahead of Porto Alegre. |
| Guimaraes | +3:0 hours | Guimaraes is 3 hours ahead of Porto Alegre. |
| Guiyang | +11:0 hours | Guiyang is 11 hours ahead of Porto Alegre. |
| Gulbarga | +8:30 hours | Gulbarga is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gumla | +8:30 hours | Gumla is 8 hours, 30 minutes ahead of Porto Alegre. |
| Guna | +8:30 hours | Guna is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gunsan | +12:0 hours | Gunsan is 12 hours ahead of Porto Alegre. |
| Guntur | +8:30 hours | Guntur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gurdaspur | +8:30 hours | Gurdaspur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gurgaon | +8:30 hours | Gurgaon is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gutersloh | +4:0 hours | Gutersloh is 4 hours ahead of Porto Alegre. |
| Guwahati | +8:30 hours | Guwahati is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gwalior | +8:30 hours | Gwalior is 8 hours, 30 minutes ahead of Porto Alegre. |
| Gyanpur | +8:30 hours | Gyanpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Haarlem | +4:0 hours | Haarlem is 4 hours ahead of Porto Alegre. |
| Hadera | +5:0 hours | Hadera is 5 hours ahead of Porto Alegre. |
| Hagen | +4:0 hours | Hagen is 4 hours ahead of Porto Alegre. |
| Haifa | +5:0 hours | Haifa is 5 hours ahead of Porto Alegre. |
| Haikou | +11:0 hours | Haikou is 11 hours ahead of Porto Alegre. |
| Hajipur | +8:30 hours | Hajipur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Haldimand | -2:0 hours | Haldimand is 2 hours behind Porto Alegre. |
| Haldwani | +8:30 hours | Haldwani is 8 hours, 30 minutes ahead of Porto Alegre. |
| Halifax | -1:0 hour | Halifax is 1 hour behind Porto Alegre. |
| Halle | +4:0 hours | Halle is 4 hours ahead of Porto Alegre. |
| Halmstad | +4:0 hours | Halmstad is 4 hours ahead of Porto Alegre. |
| Halton Hills | -2:0 hours | Halton Hills is 2 hours behind Porto Alegre. |
| Hamamatsu | +12:0 hours | Hamamatsu is 12 hours ahead of Porto Alegre. |
| Hamburg | +4:0 hours | Hamburg is 4 hours ahead of Porto Alegre. |
| Hamilton | * +16:0 hours | Hamilton is 16 hours ahead of Porto Alegre. |
| Hamilton (Bermuda) | -1:0 hour | Hamilton (Bermuda) is 1 hour behind Porto Alegre. |
| Hamilton (Canada) | -2:0 hours | Hamilton (Canada) is 2 hours behind Porto Alegre. |
| Hamirpur | +8:30 hours | Hamirpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Hamm | +4:0 hours | Hamm is 4 hours ahead of Porto Alegre. |
| Hammerfest | +4:0 hours | Hammerfest is 4 hours ahead of Porto Alegre. |
| Hampton | -2:0 hours | Hampton is 2 hours behind Porto Alegre. |
| Hanau | +4:0 hours | Hanau is 4 hours ahead of Porto Alegre. |
| Handan | +11:0 hours | Handan is 11 hours ahead of Porto Alegre. |
| Hangzhou | +11:0 hours | Hangzhou is 11 hours ahead of Porto Alegre. |
| Hannover | +4:0 hours | Hannover is 4 hours ahead of Porto Alegre. |
| Hanoi | +10:0 hours | Hanoi is 10 hours ahead of Porto Alegre. |
| Hanover | -3:0 hours | Hanover is 3 hours behind Porto Alegre. |
| Hanumangarh | +8:30 hours | Hanumangarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Happy Valley-Goose Bay | -1:0 hour | Happy Valley-Goose Bay is 1 hour behind Porto Alegre. |
| Harare | +5:0 hours | Harare is 5 hours ahead of Porto Alegre. |
| Harbin | +11:0 hours | Harbin is 11 hours ahead of Porto Alegre. |
| Harda | +8:30 hours | Harda is 8 hours, 30 minutes ahead of Porto Alegre. |
| Hardoi | +8:30 hours | Hardoi is 8 hours, 30 minutes ahead of Porto Alegre. |
| Hargeisa | +6:0 hours | Hargeisa is 6 hours ahead of Porto Alegre. |
| Haridwar | +8:30 hours | Haridwar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Harrisburg | -2:0 hours | Harrisburg is 2 hours behind Porto Alegre. |
| Hartford | -2:0 hours | Hartford is 2 hours behind Porto Alegre. |
| Hathras | +8:30 hours | Hathras is 8 hours, 30 minutes ahead of Porto Alegre. |
| Haugesund | +4:0 hours | Haugesund is 4 hours ahead of Porto Alegre. |
| Havana | -2:0 hours | Havana is 2 hours behind Porto Alegre. |
| Hay River | -4:0 hours | Hay River is 4 hours behind Porto Alegre. |
| Hayward | -5:0 hours | Hayward is 5 hours behind Porto Alegre. |
| Hazaribagh | +8:30 hours | Hazaribagh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Hefei | +11:0 hours | Hefei is 11 hours ahead of Porto Alegre. |
| Heidelberg | +4:0 hours | Heidelberg is 4 hours ahead of Porto Alegre. |
| Heilbronn | +4:0 hours | Heilbronn is 4 hours ahead of Porto Alegre. |
| Helena | -4:0 hours | Helena is 4 hours behind Porto Alegre. |
| Helsingborg | +4:0 hours | Helsingborg is 4 hours ahead of Porto Alegre. |
| Helsinki | +5:0 hours | Helsinki is 5 hours ahead of Porto Alegre. |
| Heraklion | +5:0 hours | Heraklion is 5 hours ahead of Porto Alegre. |
| Herat | +7:30 hours | Herat is 7 hours, 30 minutes ahead of Porto Alegre. |
| Hereford | -3:0 hours | Hereford is 3 hours behind Porto Alegre. |
| Hermosillo | -4:0 hours | Hermosillo is 4 hours behind Porto Alegre. |
| Herne | +4:0 hours | Herne is 4 hours ahead of Porto Alegre. |
| Hervey Bay | +13:0 hours | Hervey Bay is 13 hours ahead of Porto Alegre. |
| Herzliya | +5:0 hours | Herzliya is 5 hours ahead of Porto Alegre. |
| Hialeah | -2:0 hours | Hialeah is 2 hours behind Porto Alegre. |
| High Level | -4:0 hours | High Level is 4 hours behind Porto Alegre. |
| Hildesheim | +4:0 hours | Hildesheim is 4 hours ahead of Porto Alegre. |
| Hilla | +6:0 hours | Hilla is 6 hours ahead of Porto Alegre. |
| Hilo | -7:0 hours | Hilo is 7 hours behind Porto Alegre. |
| Himeji | +12:0 hours | Himeji is 12 hours ahead of Porto Alegre. |
| Hingoli | +8:30 hours | Hingoli is 8 hours, 30 minutes ahead of Porto Alegre. |
| Hiroshima | +12:0 hours | Hiroshima is 12 hours ahead of Porto Alegre. |
| Ho Chi Minh | +10:0 hours | Ho Chi Minh is 10 hours ahead of Porto Alegre. |
| Hobart | * +14:0 hours | Hobart is 14 hours ahead of Porto Alegre. |
| Hohhot | +11:0 hours | Hohhot is 11 hours ahead of Porto Alegre. |
| Holguin | -2:0 hours | Holguin is 2 hours behind Porto Alegre. |
| Hollywood | -5:0 hours | Hollywood is 5 hours behind Porto Alegre. |
| Hollywood city | -2:0 hours | Hollywood city is 2 hours behind Porto Alegre. |
| Holon | +5:0 hours | Holon is 5 hours ahead of Porto Alegre. |
| Hong Kong | +11:0 hours | Hong Kong is 11 hours ahead of Porto Alegre. |
| Honiara | +14:0 hours | Honiara is 14 hours ahead of Porto Alegre. |
| Honolulu | -7:0 hours | Honolulu is 7 hours behind Porto Alegre. |
| Hoofddorp | +4:0 hours | Hoofddorp is 4 hours ahead of Porto Alegre. |
| Horsens | +4:0 hours | Horsens is 4 hours ahead of Porto Alegre. |
| Hoshangabad | +8:30 hours | Hoshangabad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Hoshiarpur | +8:30 hours | Hoshiarpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Houston | -3:0 hours | Houston is 3 hours behind Porto Alegre. |
| Hovd | +10:0 hours | Hovd is 10 hours ahead of Porto Alegre. |
| Howrah | +8:30 hours | Howrah is 8 hours, 30 minutes ahead of Porto Alegre. |
| Huaibei | +11:0 hours | Huaibei is 11 hours ahead of Porto Alegre. |
| Huainan | +11:0 hours | Huainan is 11 hours ahead of Porto Alegre. |
| Huancayo | -2:0 hours | Huancayo is 2 hours behind Porto Alegre. |
| Hubballi-Dharwad | +8:30 hours | Hubballi-Dharwad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Huddersfield | +3:0 hours | Huddersfield is 3 hours ahead of Porto Alegre. |
| Hugli-Chuchura | +8:30 hours | Hugli-Chuchura is 8 hours, 30 minutes ahead of Porto Alegre. |
| Huntington Beach | -5:0 hours | Huntington Beach is 5 hours behind Porto Alegre. |
| Huntsville | -3:0 hours | Huntsville is 3 hours behind Porto Alegre. |
| Hyderabad | +8:30 hours | Hyderabad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Iasi | +5:0 hours | Iasi is 5 hours ahead of Porto Alegre. |
| Ibague | -2:0 hours | Ibague is 2 hours behind Porto Alegre. |
| Ica | -2:0 hours | Ica is 2 hours behind Porto Alegre. |
| Idaho Falls | -4:0 hours | Idaho Falls is 4 hours behind Porto Alegre. |
| Igloolik | -2:0 hours | Igloolik is 2 hours behind Porto Alegre. |
| Igoumenitsa | +5:0 hours | Igoumenitsa is 5 hours ahead of Porto Alegre. |
| Ilheus | same time | There is no time difference between Ilheus and Porto Alegre. |
| Ilio | +5:0 hours | Ilio is 5 hours ahead of Porto Alegre. |
| Ilioupoli | +5:0 hours | Ilioupoli is 5 hours ahead of Porto Alegre. |
| Iloilo City | +11:0 hours | Iloilo City is 11 hours ahead of Porto Alegre. |
| Ilulissat | same time | There is no time difference between Ilulissat and Porto Alegre. |
| Imphal | +8:30 hours | Imphal is 8 hours, 30 minutes ahead of Porto Alegre. |
| Incheon | +12:0 hours | Incheon is 12 hours ahead of Porto Alegre. |
| Independence | -3:0 hours | Independence is 3 hours behind Porto Alegre. |
| Indianapolis | -2:0 hours | Indianapolis is 2 hours behind Porto Alegre. |
| Indore | +8:30 hours | Indore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Inglewood | -5:0 hours | Inglewood is 5 hours behind Porto Alegre. |
| Ingolstadt | +4:0 hours | Ingolstadt is 4 hours ahead of Porto Alegre. |
| Innsbruck | +4:0 hours | Innsbruck is 4 hours ahead of Porto Alegre. |
| Inuvik | -4:0 hours | Inuvik is 4 hours behind Porto Alegre. |
| Invercargill | * +16:0 hours | Invercargill is 16 hours ahead of Porto Alegre. |
| Inverness | +3:0 hours | Inverness is 3 hours ahead of Porto Alegre. |
| Ioannina | +5:0 hours | Ioannina is 5 hours ahead of Porto Alegre. |
| Ipswich | +3:0 hours | Ipswich is 3 hours ahead of Porto Alegre. |
| Iqaluit | -2:0 hours | Iqaluit is 2 hours behind Porto Alegre. |
| Iquique | * same time | There is no time difference between Iquique and Porto Alegre. |
| Iquitos | -2:0 hours | Iquitos is 2 hours behind Porto Alegre. |
| Iraklion | +5:0 hours | Iraklion is 5 hours ahead of Porto Alegre. |
| Irbil | +6:0 hours | Irbil is 6 hours ahead of Porto Alegre. |
| Irvine | -5:0 hours | Irvine is 5 hours behind Porto Alegre. |
| Irving | -3:0 hours | Irving is 3 hours behind Porto Alegre. |
| Iserlohn | +4:0 hours | Iserlohn is 4 hours ahead of Porto Alegre. |
| Islamabad | +8:0 hours | Islamabad is 8 hours ahead of Porto Alegre. |
| Istanbul | +6:0 hours | Istanbul is 6 hours ahead of Porto Alegre. |
| Istres | +4:0 hours | Istres is 4 hours ahead of Porto Alegre. |
| Itabuna | same time | There is no time difference between Itabuna and Porto Alegre. |
| Itanagar | +8:30 hours | Itanagar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ittoqqortoormiit | +2:0 hours | Ittoqqortoormiit is 2 hours ahead of Porto Alegre. |
| Izmir | +6:0 hours | Izmir is 6 hours ahead of Porto Alegre. |
| Jabalpur | +8:30 hours | Jabalpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jackson | -3:0 hours | Jackson is 3 hours behind Porto Alegre. |
| Jacksonville | -2:0 hours | Jacksonville is 2 hours behind Porto Alegre. |
| Jagatsinghpur | +8:30 hours | Jagatsinghpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jaipur | +8:30 hours | Jaipur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jaisalmer | +8:30 hours | Jaisalmer is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jakarta | +10:0 hours | Jakarta is 10 hours ahead of Porto Alegre. |
| Jalalabad | +7:30 hours | Jalalabad is 7 hours, 30 minutes ahead of Porto Alegre. |
| Jalandhar | +8:30 hours | Jalandhar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jalgaon | +8:30 hours | Jalgaon is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jalna | +8:30 hours | Jalna is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jalore | +8:30 hours | Jalore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jalpaiguri | +8:30 hours | Jalpaiguri is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jambi | +10:0 hours | Jambi is 10 hours ahead of Porto Alegre. |
| Jammu | +8:30 hours | Jammu is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jamnagar | +8:30 hours | Jamnagar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jamshedpur | +8:30 hours | Jamshedpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jamui | +8:30 hours | Jamui is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jan Mayen | +4:0 hours | Jan Mayen is 4 hours ahead of Porto Alegre. |
| Jastrzebie Zdroj | +4:0 hours | Jastrzebie Zdroj is 4 hours ahead of Porto Alegre. |
| Jaunpur | +8:30 hours | Jaunpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jayapura | +12:0 hours | Jayapura is 12 hours ahead of Porto Alegre. |
| Jeddah | +6:0 hours | Jeddah is 6 hours ahead of Porto Alegre. |
| Jefferson City | -3:0 hours | Jefferson City is 3 hours behind Porto Alegre. |
| Jehanabad | +8:30 hours | Jehanabad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jena | +4:0 hours | Jena is 4 hours ahead of Porto Alegre. |
| Jequie | same time | There is no time difference between Jequie and Porto Alegre. |
| Jersey City | -2:0 hours | Jersey City is 2 hours behind Porto Alegre. |
| Jerusalem | +5:0 hours | Jerusalem is 5 hours ahead of Porto Alegre. |
| Jessore | +9:0 hours | Jessore is 9 hours ahead of Porto Alegre. |
| Jhabua | +8:30 hours | Jhabua is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jhalawar | +8:30 hours | Jhalawar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jhansi | +8:30 hours | Jhansi is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jharsuguda | +8:30 hours | Jharsuguda is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jhunjhunu | +8:30 hours | Jhunjhunu is 8 hours, 30 minutes ahead of Porto Alegre. |
| Jilin | +11:0 hours | Jilin is 11 hours ahead of Porto Alegre. |
| Jinan | +11:0 hours | Jinan is 11 hours ahead of Porto Alegre. |
| Jinzhou | +11:0 hours | Jinzhou is 11 hours ahead of Porto Alegre. |
| Joao Pessoa | same time | There is no time difference between Joao Pessoa and Porto Alegre. |
| Jodhpur | +8:30 hours | Jodhpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Joensuu | +5:0 hours | Joensuu is 5 hours ahead of Porto Alegre. |
| Johannesburg | +5:0 hours | Johannesburg is 5 hours ahead of Porto Alegre. |
| Joinville | same time | There is no time difference between Joinville and Porto Alegre. |
| Jonkoping | +4:0 hours | Jonkoping is 4 hours ahead of Porto Alegre. |
| Jorhat | +8:30 hours | Jorhat is 8 hours, 30 minutes ahead of Porto Alegre. |
| Juazeiro do Norte | same time | There is no time difference between Juazeiro do Norte and Porto Alegre. |
| Juba | +6:0 hours | Juba is 6 hours ahead of Porto Alegre. |
| Juiz de Fora | same time | There is no time difference between Juiz de Fora and Porto Alegre. |
| Jujuy | same time | There is no time difference between Jujuy and Porto Alegre. |
| Junagadh | +8:30 hours | Junagadh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Juneau | -6:0 hours | Juneau is 6 hours behind Porto Alegre. |
| Junin | same time | There is no time difference between Junin and Porto Alegre. |
| Jyvaskyla | +5:0 hours | Jyvaskyla is 5 hours ahead of Porto Alegre. |
| Kabul | +7:30 hours | Kabul is 7 hours, 30 minutes ahead of Porto Alegre. |
| Kaduna | +4:0 hours | Kaduna is 4 hours ahead of Porto Alegre. |
| Kagoshima | +12:0 hours | Kagoshima is 12 hours ahead of Porto Alegre. |
| Kailua-Kona | -7:0 hours | Kailua-Kona is 7 hours behind Porto Alegre. |
| Kaiserslautern | +4:0 hours | Kaiserslautern is 4 hours ahead of Porto Alegre. |
| Kalamaria | +5:0 hours | Kalamaria is 5 hours ahead of Porto Alegre. |
| Kalamata | +5:0 hours | Kalamata is 5 hours ahead of Porto Alegre. |
| Kalamazoo | -2:0 hours | Kalamazoo is 2 hours behind Porto Alegre. |
| Kalgoorlie | +11:0 hours | Kalgoorlie is 11 hours ahead of Porto Alegre. |
| Kaliningrad | +5:0 hours | Kaliningrad is 5 hours ahead of Porto Alegre. |
| Kalisz | +4:0 hours | Kalisz is 4 hours ahead of Porto Alegre. |
| Kallithea | +5:0 hours | Kallithea is 5 hours ahead of Porto Alegre. |
| Kalpetta | +8:30 hours | Kalpetta is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kamloops | -5:0 hours | Kamloops is 5 hours behind Porto Alegre. |
| Kampala | +6:0 hours | Kampala is 6 hours ahead of Porto Alegre. |
| Kanchipuram | +8:30 hours | Kanchipuram is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kandahar | +7:30 hours | Kandahar is 7 hours, 30 minutes ahead of Porto Alegre. |
| Kannauj | +8:30 hours | Kannauj is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kano Nigeria | +4:0 hours | Kano Nigeria is 4 hours ahead of Porto Alegre. |
| Kanpur | +8:30 hours | Kanpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kansas City | -3:0 hours | Kansas City is 3 hours behind Porto Alegre. |
| Kaohsiung | +11:0 hours | Kaohsiung is 11 hours ahead of Porto Alegre. |
| Kapfenberg | +4:0 hours | Kapfenberg is 4 hours ahead of Porto Alegre. |
| Kapurthala | +8:30 hours | Kapurthala is 8 hours, 30 minutes ahead of Porto Alegre. |
| Karachi | +8:0 hours | Karachi is 8 hours ahead of Porto Alegre. |
| Karaganda | +9:0 hours | Karaganda is 9 hours ahead of Porto Alegre. |
| Karauli | +8:30 hours | Karauli is 8 hours, 30 minutes ahead of Porto Alegre. |
| Karbala | +6:0 hours | Karbala is 6 hours ahead of Porto Alegre. |
| Karjat | +8:30 hours | Karjat is 8 hours, 30 minutes ahead of Porto Alegre. |
| Karlsruhe | +4:0 hours | Karlsruhe is 4 hours ahead of Porto Alegre. |
| Karlstad | +4:0 hours | Karlstad is 4 hours ahead of Porto Alegre. |
| Karur | +8:30 hours | Karur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kasaragod | +8:30 hours | Kasaragod is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kassel | +4:0 hours | Kassel is 4 hours ahead of Porto Alegre. |
| Kathmandu | +8:45 hours | Kathmandu is 8 hours, 45 minutes ahead of Porto Alegre. |
| Kathua | +8:30 hours | Kathua is 8 hours, 30 minutes ahead of Porto Alegre. |
| Katihar | +8:30 hours | Katihar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Katni | +8:30 hours | Katni is 8 hours, 30 minutes ahead of Porto Alegre. |
| Katowice | +4:0 hours | Katowice is 4 hours ahead of Porto Alegre. |
| Kaunas | +5:0 hours | Kaunas is 5 hours ahead of Porto Alegre. |
| Kavaratti | +8:30 hours | Kavaratti is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kawartha Lakes | -2:0 hours | Kawartha Lakes is 2 hours behind Porto Alegre. |
| Kawasaki | +12:0 hours | Kawasaki is 12 hours ahead of Porto Alegre. |
| Kazan | +6:0 hours | Kazan is 6 hours ahead of Porto Alegre. |
| Kediri | +10:0 hours | Kediri is 10 hours ahead of Porto Alegre. |
| Kelowna | -5:0 hours | Kelowna is 5 hours behind Porto Alegre. |
| Kendrapara | +8:30 hours | Kendrapara is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kendujhar | +8:30 hours | Kendujhar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kennebunk | -2:0 hours | Kennebunk is 2 hours behind Porto Alegre. |
| Kenora | -3:0 hours | Kenora is 3 hours behind Porto Alegre. |
| Keratsini | +5:0 hours | Keratsini is 5 hours ahead of Porto Alegre. |
| Kerman | +6:30 hours | Kerman is 6 hours, 30 minutes ahead of Porto Alegre. |
| Key West | -2:0 hours | Key West is 2 hours behind Porto Alegre. |
| Kfar Saba | +5:0 hours | Kfar Saba is 5 hours ahead of Porto Alegre. |
| Khagaria | +8:30 hours | Khagaria is 8 hours, 30 minutes ahead of Porto Alegre. |
| Khalilabad | +8:30 hours | Khalilabad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Khandwa | +8:30 hours | Khandwa is 8 hours, 30 minutes ahead of Porto Alegre. |
| Khania | +5:0 hours | Khania is 5 hours ahead of Porto Alegre. |
| Kharagpur | +8:30 hours | Kharagpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Khargone | +8:30 hours | Khargone is 8 hours, 30 minutes ahead of Porto Alegre. |
| Khartoum | +5:0 hours | Khartoum is 5 hours ahead of Porto Alegre. |
| Khon Kaen | +10:0 hours | Khon Kaen is 10 hours ahead of Porto Alegre. |
| Khordha | +8:30 hours | Khordha is 8 hours, 30 minutes ahead of Porto Alegre. |
| Khulna | +9:0 hours | Khulna is 9 hours ahead of Porto Alegre. |
| Kiel | +4:0 hours | Kiel is 4 hours ahead of Porto Alegre. |
| Kielce | +4:0 hours | Kielce is 4 hours ahead of Porto Alegre. |
| Kiev | +5:0 hours | Kiev is 5 hours ahead of Porto Alegre. |
| Kigali | +5:0 hours | Kigali is 5 hours ahead of Porto Alegre. |
| Kings County | -1:0 hour | Kings County is 1 hour behind Porto Alegre. |
| Kingston | +14:30 hours | Kingston is 14 hours, 30 minutes ahead of Porto Alegre. |
| Kingston (Canada) | -2:0 hours | Kingston (Canada) is 2 hours behind Porto Alegre. |
| Kingston (Jamaica) | -2:0 hours | Kingston (Jamaica) is 2 hours behind Porto Alegre. |
| Kingston upon Hull | +3:0 hours | Kingston upon Hull is 3 hours ahead of Porto Alegre. |
| Kingstown | -1:0 hour | Kingstown is 1 hour behind Porto Alegre. |
| Kinshasa | +4:0 hours | Kinshasa is 4 hours ahead of Porto Alegre. |
| Kiritimati | +17:0 hours | Kiritimati is 17 hours ahead of Porto Alegre. |
| Kirkenes | +4:0 hours | Kirkenes is 4 hours ahead of Porto Alegre. |
| Kirkuk | +6:0 hours | Kirkuk is 6 hours ahead of Porto Alegre. |
| Kishanganj | +8:30 hours | Kishanganj is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kishinev | +5:0 hours | Kishinev is 5 hours ahead of Porto Alegre. |
| Kisumu | +6:0 hours | Kisumu is 6 hours ahead of Porto Alegre. |
| Kitakyushu | +12:0 hours | Kitakyushu is 12 hours ahead of Porto Alegre. |
| Kitchener | -2:0 hours | Kitchener is 2 hours behind Porto Alegre. |
| Klagenfurt | +4:0 hours | Klagenfurt is 4 hours ahead of Porto Alegre. |
| Knox | -3:0 hours | Knox is 3 hours behind Porto Alegre. |
| Knoxville | -2:0 hours | Knoxville is 2 hours behind Porto Alegre. |
| Kobe | +12:0 hours | Kobe is 12 hours ahead of Porto Alegre. |
| Koblenz | +4:0 hours | Koblenz is 4 hours ahead of Porto Alegre. |
| Kochi | +8:30 hours | Kochi is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kohima | +8:30 hours | Kohima is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kolding | +4:0 hours | Kolding is 4 hours ahead of Porto Alegre. |
| Kolhapur | +8:30 hours | Kolhapur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kolkata | +8:30 hours | Kolkata is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kollam | +8:30 hours | Kollam is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kolonia | +14:0 hours | Kolonia is 14 hours ahead of Porto Alegre. |
| Konstanz | +4:0 hours | Konstanz is 4 hours ahead of Porto Alegre. |
| Koraput | +8:30 hours | Koraput is 8 hours, 30 minutes ahead of Porto Alegre. |
| Koror | +12:0 hours | Koror is 12 hours ahead of Porto Alegre. |
| Koszalin | +4:0 hours | Koszalin is 4 hours ahead of Porto Alegre. |
| Kota | +8:30 hours | Kota is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kota Kinabalu | +11:0 hours | Kota Kinabalu is 11 hours ahead of Porto Alegre. |
| Kotka | +5:0 hours | Kotka is 5 hours ahead of Porto Alegre. |
| Kottayam | +8:30 hours | Kottayam is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kowloon | +11:0 hours | Kowloon is 11 hours ahead of Porto Alegre. |
| Kozhikode | +8:30 hours | Kozhikode is 8 hours, 30 minutes ahead of Porto Alegre. |
| Krakow | +4:0 hours | Krakow is 4 hours ahead of Porto Alegre. |
| Kralendijk (Bonaire) | -1:0 hour | Kralendijk (Bonaire) is 1 hour behind Porto Alegre. |
| Kranj | +4:0 hours | Kranj is 4 hours ahead of Porto Alegre. |
| Krasnoyarsk | +10:0 hours | Krasnoyarsk is 10 hours ahead of Porto Alegre. |
| Krefeld | +4:0 hours | Krefeld is 4 hours ahead of Porto Alegre. |
| Krems | +4:0 hours | Krems is 4 hours ahead of Porto Alegre. |
| Krishnagiri | +8:30 hours | Krishnagiri is 8 hours, 30 minutes ahead of Porto Alegre. |
| Krishnanagar | +8:30 hours | Krishnanagar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kristiansand | +4:0 hours | Kristiansand is 4 hours ahead of Porto Alegre. |
| Kuala Lumpur | +11:0 hours | Kuala Lumpur is 11 hours ahead of Porto Alegre. |
| Kuantan | +11:0 hours | Kuantan is 11 hours ahead of Porto Alegre. |
| Kuching | +11:0 hours | Kuching is 11 hours ahead of Porto Alegre. |
| Kudus | +10:0 hours | Kudus is 10 hours ahead of Porto Alegre. |
| Kufra | +5:0 hours | Kufra is 5 hours ahead of Porto Alegre. |
| Kugluktuk | -4:0 hours | Kugluktuk is 4 hours behind Porto Alegre. |
| Kulti | +8:30 hours | Kulti is 8 hours, 30 minutes ahead of Porto Alegre. |
| Kumamoto | +12:0 hours | Kumamoto is 12 hours ahead of Porto Alegre. |
| Kunduz | +7:30 hours | Kunduz is 7 hours, 30 minutes ahead of Porto Alegre. |
| Kunming | +11:0 hours | Kunming is 11 hours ahead of Porto Alegre. |
| Kuopio | +5:0 hours | Kuopio is 5 hours ahead of Porto Alegre. |
| Kupang | +11:0 hours | Kupang is 11 hours ahead of Porto Alegre. |
| Kuwait City | +6:0 hours | Kuwait City is 6 hours ahead of Porto Alegre. |
| Kwajalein | +15:0 hours | Kwajalein is 15 hours ahead of Porto Alegre. |
| Kyoto | +12:0 hours | Kyoto is 12 hours ahead of Porto Alegre. |
| La Coruna | +4:0 hours | La Coruna is 4 hours ahead of Porto Alegre. |
| La Paz | -1:0 hour | La Paz is 1 hour behind Porto Alegre. |
| La Paz (Mexico) | -4:0 hours | La Paz (Mexico) is 4 hours behind Porto Alegre. |
| La Plata | same time | There is no time difference between La Plata and Porto Alegre. |
| La Rioja | same time | There is no time difference between La Rioja and Porto Alegre. |
| La Serena | * same time | There is no time difference between La Serena and Porto Alegre. |
| La-Chaux-de-Fonds | +4:0 hours | La-Chaux-de-Fonds is 4 hours ahead of Porto Alegre. |
| Labrador City | -1:0 hour | Labrador City is 1 hour behind Porto Alegre. |
| Lafayette | -3:0 hours | Lafayette is 3 hours behind Porto Alegre. |
| Lagos | +4:0 hours | Lagos is 4 hours ahead of Porto Alegre. |
| Lahore | +8:0 hours | Lahore is 8 hours ahead of Porto Alegre. |
| Lahti | +5:0 hours | Lahti is 5 hours ahead of Porto Alegre. |
| Lakewood | -4:0 hours | Lakewood is 4 hours behind Porto Alegre. |
| Lakhimpur | +8:30 hours | Lakhimpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Lakhisarai | +8:30 hours | Lakhisarai is 8 hours, 30 minutes ahead of Porto Alegre. |
| Lalitpur | +8:30 hours | Lalitpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Lancaster | -5:0 hours | Lancaster is 5 hours behind Porto Alegre. |
| Lanchow | +11:0 hours | Lanchow is 11 hours ahead of Porto Alegre. |
| Landshut | +4:0 hours | Landshut is 4 hours ahead of Porto Alegre. |
| Langley | -5:0 hours | Langley is 5 hours behind Porto Alegre. |
| Lansing | -2:0 hours | Lansing is 2 hours behind Porto Alegre. |
| Lanzhou | +11:0 hours | Lanzhou is 11 hours ahead of Porto Alegre. |
| Lappeenranta | +5:0 hours | Lappeenranta is 5 hours ahead of Porto Alegre. |
| Laredo | -3:0 hours | Laredo is 3 hours behind Porto Alegre. |
| Larissa | +5:0 hours | Larissa is 5 hours ahead of Porto Alegre. |
| Larnaca | +5:0 hours | Larnaca is 5 hours ahead of Porto Alegre. |
| Las Palmas | +3:0 hours | Las Palmas is 3 hours ahead of Porto Alegre. |
| Las Vegas | -5:0 hours | Las Vegas is 5 hours behind Porto Alegre. |
| Latur | +8:30 hours | Latur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Launceston | * +14:0 hours | Launceston is 14 hours ahead of Porto Alegre. |
| Lausanne | +4:0 hours | Lausanne is 4 hours ahead of Porto Alegre. |
| Laval | -2:0 hours | Laval is 2 hours behind Porto Alegre. |
| Le Havre | +4:0 hours | Le Havre is 4 hours ahead of Porto Alegre. |
| Le Mans | +4:0 hours | Le Mans is 4 hours ahead of Porto Alegre. |
| Leeds | +3:0 hours | Leeds is 3 hours ahead of Porto Alegre. |
| Legnica | +4:0 hours | Legnica is 4 hours ahead of Porto Alegre. |
| Leh | +8:30 hours | Leh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Leicester | +3:0 hours | Leicester is 3 hours ahead of Porto Alegre. |
| Leiden | +4:0 hours | Leiden is 4 hours ahead of Porto Alegre. |
| Leipzig | +4:0 hours | Leipzig is 4 hours ahead of Porto Alegre. |
| Lens | +4:0 hours | Lens is 4 hours ahead of Porto Alegre. |
| Leoben | +4:0 hours | Leoben is 4 hours ahead of Porto Alegre. |
| Leon | -3:0 hours | Leon is 3 hours behind Porto Alegre. |
| Leon (Nicaragua) | -3:0 hours | Leon (Nicaragua) is 3 hours behind Porto Alegre. |
| Lethbridge | -4:0 hours | Lethbridge is 4 hours behind Porto Alegre. |
| Leuven | +4:0 hours | Leuven is 4 hours ahead of Porto Alegre. |
| Leverkusen | +4:0 hours | Leverkusen is 4 hours ahead of Porto Alegre. |
| Levis | -2:0 hours | Levis is 2 hours behind Porto Alegre. |
| Lexington-Fayette | -2:0 hours | Lexington-Fayette is 2 hours behind Porto Alegre. |
| Lhasa | +11:0 hours | Lhasa is 11 hours ahead of Porto Alegre. |
| Libreville | +4:0 hours | Libreville is 4 hours ahead of Porto Alegre. |
| Liege | +4:0 hours | Liege is 4 hours ahead of Porto Alegre. |
| Lihue | -7:0 hours | Lihue is 7 hours behind Porto Alegre. |
| Lille | +4:0 hours | Lille is 4 hours ahead of Porto Alegre. |
| Lilongwe | +5:0 hours | Lilongwe is 5 hours ahead of Porto Alegre. |
| Lima | -2:0 hours | Lima is 2 hours behind Porto Alegre. |
| Limassol | +5:0 hours | Limassol is 5 hours ahead of Porto Alegre. |
| Limerick | +3:0 hours | Limerick is 3 hours ahead of Porto Alegre. |
| Limoges | +4:0 hours | Limoges is 4 hours ahead of Porto Alegre. |
| Lincoln | -3:0 hours | Lincoln is 3 hours behind Porto Alegre. |
| Linkoping | +4:0 hours | Linkoping is 4 hours ahead of Porto Alegre. |
| Linz | +4:0 hours | Linz is 4 hours ahead of Porto Alegre. |
| Lisbon | +3:0 hours | Lisbon is 3 hours ahead of Porto Alegre. |
| Little Rock | -3:0 hours | Little Rock is 3 hours behind Porto Alegre. |
| Liverpool | +3:0 hours | Liverpool is 3 hours ahead of Porto Alegre. |
| Livonia | -2:0 hours | Livonia is 2 hours behind Porto Alegre. |
| Ljubljana | +4:0 hours | Ljubljana is 4 hours ahead of Porto Alegre. |
| Lloydminster | -4:0 hours | Lloydminster is 4 hours behind Porto Alegre. |
| Lodz | +4:0 hours | Lodz is 4 hours ahead of Porto Alegre. |
| Loma Linda | -5:0 hours | Loma Linda is 5 hours behind Porto Alegre. |
| Lome | +3:0 hours | Lome is 3 hours ahead of Porto Alegre. |
| London | +3:0 hours | London is 3 hours ahead of Porto Alegre. |
| London (Canada) | -2:0 hours | London (Canada) is 2 hours behind Porto Alegre. |
| Londrina | same time | There is no time difference between Londrina and Porto Alegre. |
| Long Beach | -5:0 hours | Long Beach is 5 hours behind Porto Alegre. |
| Longueuil | -2:0 hours | Longueuil is 2 hours behind Porto Alegre. |
| Longyearbyen | +4:0 hours | Longyearbyen is 4 hours ahead of Porto Alegre. |
| Lord Howe Island | * +14:0 hours | Lord Howe Island is 14 hours ahead of Porto Alegre. |
| Los Angeles | -5:0 hours | Los Angeles is 5 hours behind Porto Alegre. |
| Loughton | +3:0 hours | Loughton is 3 hours ahead of Porto Alegre. |
| Louisville | -2:0 hours | Louisville is 2 hours behind Porto Alegre. |
| Loures | +3:0 hours | Loures is 3 hours ahead of Porto Alegre. |
| Lowell | -2:0 hours | Lowell is 2 hours behind Porto Alegre. |
| Luanda | +4:0 hours | Luanda is 4 hours ahead of Porto Alegre. |
| Lubango | +4:0 hours | Lubango is 4 hours ahead of Porto Alegre. |
| Lubbock | -3:0 hours | Lubbock is 3 hours behind Porto Alegre. |
| Lubeck | +4:0 hours | Lubeck is 4 hours ahead of Porto Alegre. |
| Lublin | +4:0 hours | Lublin is 4 hours ahead of Porto Alegre. |
| Lubumbashi | +5:0 hours | Lubumbashi is 5 hours ahead of Porto Alegre. |
| Lucerne | +4:0 hours | Lucerne is 4 hours ahead of Porto Alegre. |
| Lucknow | +8:30 hours | Lucknow is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ludhiana | +8:30 hours | Ludhiana is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ludwigsburg | +4:0 hours | Ludwigsburg is 4 hours ahead of Porto Alegre. |
| Ludwigshafen | +4:0 hours | Ludwigshafen is 4 hours ahead of Porto Alegre. |
| Lugano | +4:0 hours | Lugano is 4 hours ahead of Porto Alegre. |
| Lund | +4:0 hours | Lund is 4 hours ahead of Porto Alegre. |
| Luneburg | +4:0 hours | Luneburg is 4 hours ahead of Porto Alegre. |
| Lunen | +4:0 hours | Lunen is 4 hours ahead of Porto Alegre. |
| Luoyang | +11:0 hours | Luoyang is 11 hours ahead of Porto Alegre. |
| Lusaka | +5:0 hours | Lusaka is 5 hours ahead of Porto Alegre. |
| Luton | +3:0 hours | Luton is 3 hours ahead of Porto Alegre. |
| Luxembourg | +4:0 hours | Luxembourg is 4 hours ahead of Porto Alegre. |
| Lynchburg | -2:0 hours | Lynchburg is 2 hours behind Porto Alegre. |
| Lyon | +4:0 hours | Lyon is 4 hours ahead of Porto Alegre. |
| Maastricht | +4:0 hours | Maastricht is 4 hours ahead of Porto Alegre. |
| Macapa | same time | There is no time difference between Macapa and Porto Alegre. |
| Macau | +11:0 hours | Macau is 11 hours ahead of Porto Alegre. |
| Maceio | same time | There is no time difference between Maceio and Porto Alegre. |
| Mackay | +13:0 hours | Mackay is 13 hours ahead of Porto Alegre. |
| Macon | -2:0 hours | Macon is 2 hours behind Porto Alegre. |
| Macquarie Island | +14:0 hours | Macquarie Island is 14 hours ahead of Porto Alegre. |
| Madhepura | +8:30 hours | Madhepura is 8 hours, 30 minutes ahead of Porto Alegre. |
| Madhubani | +8:30 hours | Madhubani is 8 hours, 30 minutes ahead of Porto Alegre. |
| Madison | -3:0 hours | Madison is 3 hours behind Porto Alegre. |
| Madiun | +10:0 hours | Madiun is 10 hours ahead of Porto Alegre. |
| Madrid | +4:0 hours | Madrid is 4 hours ahead of Porto Alegre. |
| Madurai | +8:30 hours | Madurai is 8 hours, 30 minutes ahead of Porto Alegre. |
| Magdeburg | +4:0 hours | Magdeburg is 4 hours ahead of Porto Alegre. |
| Maharajganj | +8:30 hours | Maharajganj is 8 hours, 30 minutes ahead of Porto Alegre. |
| Mahesana | +8:30 hours | Mahesana is 8 hours, 30 minutes ahead of Porto Alegre. |
| Mahoba | +8:30 hours | Mahoba is 8 hours, 30 minutes ahead of Porto Alegre. |
| Mahon | +4:0 hours | Mahon is 4 hours ahead of Porto Alegre. |
| Mainpuri | +8:30 hours | Mainpuri is 8 hours, 30 minutes ahead of Porto Alegre. |
| Mainz | +4:0 hours | Mainz is 4 hours ahead of Porto Alegre. |
| Majuro | +15:0 hours | Majuro is 15 hours ahead of Porto Alegre. |
| Makassar | +11:0 hours | Makassar is 11 hours ahead of Porto Alegre. |
| Makati | +11:0 hours | Makati is 11 hours ahead of Porto Alegre. |
| Malabo | +4:0 hours | Malabo is 4 hours ahead of Porto Alegre. |
| Malaga | +4:0 hours | Malaga is 4 hours ahead of Porto Alegre. |
| Malang | +10:0 hours | Malang is 10 hours ahead of Porto Alegre. |
| Malda | +8:30 hours | Malda is 8 hours, 30 minutes ahead of Porto Alegre. |
| Male | +8:0 hours | Male is 8 hours ahead of Porto Alegre. |
| Malkangiri | +8:30 hours | Malkangiri is 8 hours, 30 minutes ahead of Porto Alegre. |
| Malmo | +4:0 hours | Malmo is 4 hours ahead of Porto Alegre. |
| Mamoutzou | +6:0 hours | Mamoutzou is 6 hours ahead of Porto Alegre. |
| Manado | +11:0 hours | Manado is 11 hours ahead of Porto Alegre. |
| Managua | -3:0 hours | Managua is 3 hours behind Porto Alegre. |
| Manama | +6:0 hours | Manama is 6 hours ahead of Porto Alegre. |
| Manaus | -1:0 hour | Manaus is 1 hour behind Porto Alegre. |
| Manchester | +3:0 hours | Manchester is 3 hours ahead of Porto Alegre. |
| Mandla | +8:30 hours | Mandla is 8 hours, 30 minutes ahead of Porto Alegre. |
| Mandsaur | +8:30 hours | Mandsaur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Mandurah | +11:0 hours | Mandurah is 11 hours ahead of Porto Alegre. |
| Mangalore | +8:30 hours | Mangalore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Manila | +11:0 hours | Manila is 11 hours ahead of Porto Alegre. |
| Manizales | -2:0 hours | Manizales is 2 hours behind Porto Alegre. |
| Manjhanpur | +8:30 hours | Manjhanpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Mannheim | +4:0 hours | Mannheim is 4 hours ahead of Porto Alegre. |
| Mansa | +8:30 hours | Mansa is 8 hours, 30 minutes ahead of Porto Alegre. |
| Maple Ridge | -5:0 hours | Maple Ridge is 5 hours behind Porto Alegre. |
| Maputo | +5:0 hours | Maputo is 5 hours ahead of Porto Alegre. |
| Mar del Plata | same time | There is no time difference between Mar del Plata and Porto Alegre. |
| Marawi City | +11:0 hours | Marawi City is 11 hours ahead of Porto Alegre. |
| Marburg | +4:0 hours | Marburg is 4 hours ahead of Porto Alegre. |
| Marengo | -2:0 hours | Marengo is 2 hours behind Porto Alegre. |
| Margao | +8:30 hours | Margao is 8 hours, 30 minutes ahead of Porto Alegre. |
| Maribor | +4:0 hours | Maribor is 4 hours ahead of Porto Alegre. |
| Mariehamn | +5:0 hours | Mariehamn is 5 hours ahead of Porto Alegre. |
| Markham | -2:0 hours | Markham is 2 hours behind Porto Alegre. |
| Marl | +4:0 hours | Marl is 4 hours ahead of Porto Alegre. |
| Marrakech | +4:0 hours | Marrakech is 4 hours ahead of Porto Alegre. |
| Marseille | +4:0 hours | Marseille is 4 hours ahead of Porto Alegre. |
| Maseru | +5:0 hours | Maseru is 5 hours ahead of Porto Alegre. |
| Mashhad | +6:30 hours | Mashhad is 6 hours, 30 minutes ahead of Porto Alegre. |
| Matamoros | -3:0 hours | Matamoros is 3 hours behind Porto Alegre. |
| Mataram | +11:0 hours | Mataram is 11 hours ahead of Porto Alegre. |
| Mathura | +8:30 hours | Mathura is 8 hours, 30 minutes ahead of Porto Alegre. |
| Matsuyama | +12:0 hours | Matsuyama is 12 hours ahead of Porto Alegre. |
| Mau | +8:30 hours | Mau is 8 hours, 30 minutes ahead of Porto Alegre. |
| Mazari Sharif | +7:30 hours | Mazari Sharif is 7 hours, 30 minutes ahead of Porto Alegre. |
| Mazatlan | -4:0 hours | Mazatlan is 4 hours behind Porto Alegre. |
| Mbabane | +5:0 hours | Mbabane is 5 hours ahead of Porto Alegre. |
| MD of Lunenburg | -1:0 hour | MD of Lunenburg is 1 hour behind Porto Alegre. |
| Mecca | +6:0 hours | Mecca is 6 hours ahead of Porto Alegre. |
| Mechelen | +4:0 hours | Mechelen is 4 hours ahead of Porto Alegre. |
| Medan | +10:0 hours | Medan is 10 hours ahead of Porto Alegre. |
| Medellin | -2:0 hours | Medellin is 2 hours behind Porto Alegre. |
| Medicine Hat | -4:0 hours | Medicine Hat is 4 hours behind Porto Alegre. |
| Medina | +6:0 hours | Medina is 6 hours ahead of Porto Alegre. |
| Meerut | +8:30 hours | Meerut is 8 hours, 30 minutes ahead of Porto Alegre. |
| Melbourne | * +14:0 hours | Melbourne is 14 hours ahead of Porto Alegre. |
| Melekeok | +12:0 hours | Melekeok is 12 hours ahead of Porto Alegre. |
| Memphis | -3:0 hours | Memphis is 3 hours behind Porto Alegre. |
| Mendoza | same time | There is no time difference between Mendoza and Porto Alegre. |
| Menominee | -3:0 hours | Menominee is 3 hours behind Porto Alegre. |
| Merida | -3:0 hours | Merida is 3 hours behind Porto Alegre. |
| Mersin | +6:0 hours | Mersin is 6 hours ahead of Porto Alegre. |
| Mesa | -4:0 hours | Mesa is 4 hours behind Porto Alegre. |
| Mesquite | -3:0 hours | Mesquite is 3 hours behind Porto Alegre. |
| Messina | +4:0 hours | Messina is 4 hours ahead of Porto Alegre. |
| Metairie | -3:0 hours | Metairie is 3 hours behind Porto Alegre. |
| Metz | +4:0 hours | Metz is 4 hours ahead of Porto Alegre. |
| Mexicali | -5:0 hours | Mexicali is 5 hours behind Porto Alegre. |
| Mexico City | -3:0 hours | Mexico City is 3 hours behind Porto Alegre. |
| Miami | -2:0 hours | Miami is 2 hours behind Porto Alegre. |
| Middlesbrough | +3:0 hours | Middlesbrough is 3 hours ahead of Porto Alegre. |
| Midland | -3:0 hours | Midland is 3 hours behind Porto Alegre. |
| Midnapore | +8:30 hours | Midnapore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Midway | -8:0 hours | Midway is 8 hours behind Porto Alegre. |
| Milan | +4:0 hours | Milan is 4 hours ahead of Porto Alegre. |
| Mildura | * +14:0 hours | Mildura is 14 hours ahead of Porto Alegre. |
| Milton Keynes | +3:0 hours | Milton Keynes is 3 hours ahead of Porto Alegre. |
| Milwaukee | -3:0 hours | Milwaukee is 3 hours behind Porto Alegre. |
| Minamisoma | +12:0 hours | Minamisoma is 12 hours ahead of Porto Alegre. |
| Minden | +4:0 hours | Minden is 4 hours ahead of Porto Alegre. |
| Minneapolis | -3:0 hours | Minneapolis is 3 hours behind Porto Alegre. |
| Minot | -3:0 hours | Minot is 3 hours behind Porto Alegre. |
| Minsk | +6:0 hours | Minsk is 6 hours ahead of Porto Alegre. |
| Miramichi | -1:0 hour | Miramichi is 1 hour behind Porto Alegre. |
| Miri | +11:0 hours | Miri is 11 hours ahead of Porto Alegre. |
| Mirzapur | +8:30 hours | Mirzapur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Misrata | +5:0 hours | Misrata is 5 hours ahead of Porto Alegre. |
| Mississauga | -2:0 hours | Mississauga is 2 hours behind Porto Alegre. |
| Mo i Rana | +4:0 hours | Mo i Rana is 4 hours ahead of Porto Alegre. |
| Mobile | -3:0 hours | Mobile is 3 hours behind Porto Alegre. |
| Modesto | -5:0 hours | Modesto is 5 hours behind Porto Alegre. |
| Modiin-Maccabim-Reut | +5:0 hours | Modiin-Maccabim-Reut is 5 hours ahead of Porto Alegre. |
| Moers | +4:0 hours | Moers is 4 hours ahead of Porto Alegre. |
| Moga | +8:30 hours | Moga is 8 hours, 30 minutes ahead of Porto Alegre. |
| Mogadishu | +6:0 hours | Mogadishu is 6 hours ahead of Porto Alegre. |
| Mohali | +8:30 hours | Mohali is 8 hours, 30 minutes ahead of Porto Alegre. |
| Mombasa | +6:0 hours | Mombasa is 6 hours ahead of Porto Alegre. |
| Monaco | +4:0 hours | Monaco is 4 hours ahead of Porto Alegre. |
| Monchengladbach | +4:0 hours | Monchengladbach is 4 hours ahead of Porto Alegre. |
| Moncton | -1:0 hour | Moncton is 1 hour behind Porto Alegre. |
| Monrovia | +3:0 hours | Monrovia is 3 hours ahead of Porto Alegre. |
| Mons | +4:0 hours | Mons is 4 hours ahead of Porto Alegre. |
| Monterrey | -3:0 hours | Monterrey is 3 hours behind Porto Alegre. |
| Montes Claros | same time | There is no time difference between Montes Claros and Porto Alegre. |
| Montevideo | same time | There is no time difference between Montevideo and Porto Alegre. |
| Montfoort | +4:0 hours | Montfoort is 4 hours ahead of Porto Alegre. |
| Montgomery | -3:0 hours | Montgomery is 3 hours behind Porto Alegre. |
| Monticello | -2:0 hours | Monticello is 2 hours behind Porto Alegre. |
| Montpelier | -2:0 hours | Montpelier is 2 hours behind Porto Alegre. |
| Montpellier | +4:0 hours | Montpellier is 4 hours ahead of Porto Alegre. |
| Montreal | -2:0 hours | Montreal is 2 hours behind Porto Alegre. |
| Moose Jaw | -3:0 hours | Moose Jaw is 3 hours behind Porto Alegre. |
| Moradabad | +8:30 hours | Moradabad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Morena | +8:30 hours | Morena is 8 hours, 30 minutes ahead of Porto Alegre. |
| Moreno Valley | -5:0 hours | Moreno Valley is 5 hours behind Porto Alegre. |
| Moroni | +6:0 hours | Moroni is 6 hours ahead of Porto Alegre. |
| Moscow | +6:0 hours | Moscow is 6 hours ahead of Porto Alegre. |
| Mosman | * +14:0 hours | Mosman is 14 hours ahead of Porto Alegre. |
| Moss | +4:0 hours | Moss is 4 hours ahead of Porto Alegre. |
| Mossoro | same time | There is no time difference between Mossoro and Porto Alegre. |
| Mosul | +6:0 hours | Mosul is 6 hours ahead of Porto Alegre. |
| Motihari | +8:30 hours | Motihari is 8 hours, 30 minutes ahead of Porto Alegre. |
| Mount Pearl | -0:30 minutes | Mount Pearl is 30 minutes behind Porto Alegre. |
| Mountain View | -5:0 hours | Mountain View is 5 hours behind Porto Alegre. |
| Muktsar | +8:30 hours | Muktsar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Mulheim | +4:0 hours | Mulheim is 4 hours ahead of Porto Alegre. |
| Mulhouse | +4:0 hours | Mulhouse is 4 hours ahead of Porto Alegre. |
| Mumbai | +8:30 hours | Mumbai is 8 hours, 30 minutes ahead of Porto Alegre. |
| Munger | +8:30 hours | Munger is 8 hours, 30 minutes ahead of Porto Alegre. |
| Munich | +4:0 hours | Munich is 4 hours ahead of Porto Alegre. |
| Munster | +4:0 hours | Munster is 4 hours ahead of Porto Alegre. |
| Murcia | +4:0 hours | Murcia is 4 hours ahead of Porto Alegre. |
| Murmansk | +6:0 hours | Murmansk is 6 hours ahead of Porto Alegre. |
| Muscat | +7:0 hours | Muscat is 7 hours ahead of Porto Alegre. |
| Muzaffarnagar | +8:30 hours | Muzaffarnagar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Muzaffarpur | +8:30 hours | Muzaffarpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Mymensingh | +9:0 hours | Mymensingh is 9 hours ahead of Porto Alegre. |
| Myrtle Beach | -2:0 hours | Myrtle Beach is 2 hours behind Porto Alegre. |
| Mysore | +8:30 hours | Mysore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nabarangpur | +8:30 hours | Nabarangpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nadiad | +8:30 hours | Nadiad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nagaon | +8:30 hours | Nagaon is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nagapattinam | +8:30 hours | Nagapattinam is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nagasaki | +12:0 hours | Nagasaki is 12 hours ahead of Porto Alegre. |
| Nagaur | +8:30 hours | Nagaur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nagercoil | +8:30 hours | Nagercoil is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nagoya | +12:0 hours | Nagoya is 12 hours ahead of Porto Alegre. |
| Nagpur | +8:30 hours | Nagpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Naha | +12:0 hours | Naha is 12 hours ahead of Porto Alegre. |
| Nairobi | +6:0 hours | Nairobi is 6 hours ahead of Porto Alegre. |
| Najaf | +6:0 hours | Najaf is 6 hours ahead of Porto Alegre. |
| Nalanda | +8:30 hours | Nalanda is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nalbari | +8:30 hours | Nalbari is 8 hours, 30 minutes ahead of Porto Alegre. |
| Namakkal | +8:30 hours | Namakkal is 8 hours, 30 minutes ahead of Porto Alegre. |
| Namsos | +4:0 hours | Namsos is 4 hours ahead of Porto Alegre. |
| Namur | +4:0 hours | Namur is 4 hours ahead of Porto Alegre. |
| Nanaimo | -5:0 hours | Nanaimo is 5 hours behind Porto Alegre. |
| Nanchang | +11:0 hours | Nanchang is 11 hours ahead of Porto Alegre. |
| Nancy | +4:0 hours | Nancy is 4 hours ahead of Porto Alegre. |
| Nanded | +8:30 hours | Nanded is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nandurbar | +8:30 hours | Nandurbar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nanjing | +11:0 hours | Nanjing is 11 hours ahead of Porto Alegre. |
| Nannestad | +4:0 hours | Nannestad is 4 hours ahead of Porto Alegre. |
| Nanning | +11:0 hours | Nanning is 11 hours ahead of Porto Alegre. |
| Nantes | +4:0 hours | Nantes is 4 hours ahead of Porto Alegre. |
| Napier | * +16:0 hours | Napier is 16 hours ahead of Porto Alegre. |
| Naples | +4:0 hours | Naples is 4 hours ahead of Porto Alegre. |
| Naples (US) | -2:0 hours | Naples (US) is 2 hours behind Porto Alegre. |
| Narsinghpur | +8:30 hours | Narsinghpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Narvik | +4:0 hours | Narvik is 4 hours ahead of Porto Alegre. |
| Nashville | -3:0 hours | Nashville is 3 hours behind Porto Alegre. |
| Nasik | +8:30 hours | Nasik is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nasiriya | +6:0 hours | Nasiriya is 6 hours ahead of Porto Alegre. |
| Nassau | -2:0 hours | Nassau is 2 hours behind Porto Alegre. |
| Natal | same time | There is no time difference between Natal and Porto Alegre. |
| Naugarh | +8:30 hours | Naugarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Navi Mumbai | +8:30 hours | Navi Mumbai is 8 hours, 30 minutes ahead of Porto Alegre. |
| Navsari | +8:30 hours | Navsari is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nawada | +8:30 hours | Nawada is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nawanshahr | +8:30 hours | Nawanshahr is 8 hours, 30 minutes ahead of Porto Alegre. |
| Naxos | +5:0 hours | Naxos is 5 hours ahead of Porto Alegre. |
| Nayagarh | +8:30 hours | Nayagarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Naypyidaw | +9:30 hours | Naypyidaw is 9 hours, 30 minutes ahead of Porto Alegre. |
| Ndjamena | +4:0 hours | Ndjamena is 4 hours ahead of Porto Alegre. |
| Nea Smyrni | +5:0 hours | Nea Smyrni is 5 hours ahead of Porto Alegre. |
| Neemuch | +8:30 hours | Neemuch is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nelson | * +16:0 hours | Nelson is 16 hours ahead of Porto Alegre. |
| Nelspruit | +5:0 hours | Nelspruit is 5 hours ahead of Porto Alegre. |
| Netanya | +5:0 hours | Netanya is 5 hours ahead of Porto Alegre. |
| Neubrandenburg | +4:0 hours | Neubrandenburg is 4 hours ahead of Porto Alegre. |
| Neuchatel | +4:0 hours | Neuchatel is 4 hours ahead of Porto Alegre. |
| Neumunster | +4:0 hours | Neumunster is 4 hours ahead of Porto Alegre. |
| Neuquen | same time | There is no time difference between Neuquen and Porto Alegre. |
| Neuss | +4:0 hours | Neuss is 4 hours ahead of Porto Alegre. |
| New Bedford | -2:0 hours | New Bedford is 2 hours behind Porto Alegre. |
| New City | -2:0 hours | New City is 2 hours behind Porto Alegre. |
| New Delhi | +8:30 hours | New Delhi is 8 hours, 30 minutes ahead of Porto Alegre. |
| New Haven | -2:0 hours | New Haven is 2 hours behind Porto Alegre. |
| New Orleans | -3:0 hours | New Orleans is 3 hours behind Porto Alegre. |
| New Plymouth | * +16:0 hours | New Plymouth is 16 hours ahead of Porto Alegre. |
| New Salem | -3:0 hours | New Salem is 3 hours behind Porto Alegre. |
| New Westminster | -5:0 hours | New Westminster is 5 hours behind Porto Alegre. |
| New York | -2:0 hours | New York is 2 hours behind Porto Alegre. |
| Newark | -2:0 hours | Newark is 2 hours behind Porto Alegre. |
| Newcastle | * +14:0 hours | Newcastle is 14 hours ahead of Porto Alegre. |
| Newcastle upon Tyne | +3:0 hours | Newcastle upon Tyne is 3 hours ahead of Porto Alegre. |
| Newmarket | -2:0 hours | Newmarket is 2 hours behind Porto Alegre. |
| Newport | +3:0 hours | Newport is 3 hours ahead of Porto Alegre. |
| Newport News | -2:0 hours | Newport News is 2 hours behind Porto Alegre. |
| Niagara Falls | -2:0 hours | Niagara Falls is 2 hours behind Porto Alegre. |
| Niamey | +4:0 hours | Niamey is 4 hours ahead of Porto Alegre. |
| Nice | +4:0 hours | Nice is 4 hours ahead of Porto Alegre. |
| Nicosia | +5:0 hours | Nicosia is 5 hours ahead of Porto Alegre. |
| Niigata | +12:0 hours | Niigata is 12 hours ahead of Porto Alegre. |
| Nijmegen | +4:0 hours | Nijmegen is 4 hours ahead of Porto Alegre. |
| Nikaia | +5:0 hours | Nikaia is 5 hours ahead of Porto Alegre. |
| Nimes | +4:0 hours | Nimes is 4 hours ahead of Porto Alegre. |
| Niteroi | same time | There is no time difference between Niteroi and Porto Alegre. |
| Nome | -6:0 hours | Nome is 6 hours behind Porto Alegre. |
| Nordkirchen | +4:0 hours | Nordkirchen is 4 hours ahead of Porto Alegre. |
| Norfolk | -2:0 hours | Norfolk is 2 hours behind Porto Alegre. |
| Norfolk (Canada) | -2:0 hours | Norfolk (Canada) is 2 hours behind Porto Alegre. |
| Norrkoping | +4:0 hours | Norrkoping is 4 hours ahead of Porto Alegre. |
| North Bay | -2:0 hours | North Bay is 2 hours behind Porto Alegre. |
| North Lakhimpur | +8:30 hours | North Lakhimpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Northampton | +3:0 hours | Northampton is 3 hours ahead of Porto Alegre. |
| Norwalk | -5:0 hours | Norwalk is 5 hours behind Porto Alegre. |
| Norwich | +3:0 hours | Norwich is 3 hours ahead of Porto Alegre. |
| Nottingham | +3:0 hours | Nottingham is 3 hours ahead of Porto Alegre. |
| Nouakchott | +3:0 hours | Nouakchott is 3 hours ahead of Porto Alegre. |
| Noumea | +14:0 hours | Noumea is 14 hours ahead of Porto Alegre. |
| Novgorod | +6:0 hours | Novgorod is 6 hours ahead of Porto Alegre. |
| Novosibirsk | +10:0 hours | Novosibirsk is 10 hours ahead of Porto Alegre. |
| Nuapada | +8:30 hours | Nuapada is 8 hours, 30 minutes ahead of Porto Alegre. |
| Nukualofa | +16:0 hours | Nukualofa is 16 hours ahead of Porto Alegre. |
| Nuremberg | +4:0 hours | Nuremberg is 4 hours ahead of Porto Alegre. |
| Nuuk | same time | There is no time difference between Nuuk and Porto Alegre. |
| Oakland | -5:0 hours | Oakland is 5 hours behind Porto Alegre. |
| Oakville | -2:0 hours | Oakville is 2 hours behind Porto Alegre. |
| Oaxaca | -3:0 hours | Oaxaca is 3 hours behind Porto Alegre. |
| Oberhausen | +4:0 hours | Oberhausen is 4 hours ahead of Porto Alegre. |
| Oberlin | -2:0 hours | Oberlin is 2 hours behind Porto Alegre. |
| Oceanside | -5:0 hours | Oceanside is 5 hours behind Porto Alegre. |
| Odense | +4:0 hours | Odense is 4 hours ahead of Porto Alegre. |
| Odesa | +5:0 hours | Odesa is 5 hours ahead of Porto Alegre. |
| Offenbach | +4:0 hours | Offenbach is 4 hours ahead of Porto Alegre. |
| Ojinaga | -4:0 hours | Ojinaga is 4 hours behind Porto Alegre. |
| Okayama | +12:0 hours | Okayama is 12 hours ahead of Porto Alegre. |
| Oklahoma City | -3:0 hours | Oklahoma City is 3 hours behind Porto Alegre. |
| Olathe | -3:0 hours | Olathe is 3 hours behind Porto Alegre. |
| Oldenburg | +4:0 hours | Oldenburg is 4 hours ahead of Porto Alegre. |
| Oldham | +3:0 hours | Oldham is 3 hours ahead of Porto Alegre. |
| Olongapo | +11:0 hours | Olongapo is 11 hours ahead of Porto Alegre. |
| Olsztyn | +4:0 hours | Olsztyn is 4 hours ahead of Porto Alegre. |
| Olympia | -5:0 hours | Olympia is 5 hours behind Porto Alegre. |
| Omaha | -3:0 hours | Omaha is 3 hours behind Porto Alegre. |
| Omsk | +9:0 hours | Omsk is 9 hours ahead of Porto Alegre. |
| Ontario | -5:0 hours | Ontario is 5 hours behind Porto Alegre. |
| Ootacamund | +8:30 hours | Ootacamund is 8 hours, 30 minutes ahead of Porto Alegre. |
| Opole | +4:0 hours | Opole is 4 hours ahead of Porto Alegre. |
| Orai | +8:30 hours | Orai is 8 hours, 30 minutes ahead of Porto Alegre. |
| Oral | +8:0 hours | Oral is 8 hours ahead of Porto Alegre. |
| Orange | -5:0 hours | Orange is 5 hours behind Porto Alegre. |
| Oranjestad | -1:0 hour | Oranjestad is 1 hour behind Porto Alegre. |
| Orebro | +4:0 hours | Orebro is 4 hours ahead of Porto Alegre. |
| Orlando | -2:0 hours | Orlando is 2 hours behind Porto Alegre. |
| Orleans | +4:0 hours | Orleans is 4 hours ahead of Porto Alegre. |
| Oruro | -1:0 hour | Oruro is 1 hour behind Porto Alegre. |
| Osage City | -3:0 hours | Osage City is 3 hours behind Porto Alegre. |
| Osaka | +12:0 hours | Osaka is 12 hours ahead of Porto Alegre. |
| Oshawa | -2:0 hours | Oshawa is 2 hours behind Porto Alegre. |
| Oslo | +4:0 hours | Oslo is 4 hours ahead of Porto Alegre. |
| Osmanabad | +8:30 hours | Osmanabad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Osnabruck | +4:0 hours | Osnabruck is 4 hours ahead of Porto Alegre. |
| Osorno | * same time | There is no time difference between Osorno and Porto Alegre. |
| Ostersund | +4:0 hours | Ostersund is 4 hours ahead of Porto Alegre. |
| Ostrava | +4:0 hours | Ostrava is 4 hours ahead of Porto Alegre. |
| Ottawa | -2:0 hours | Ottawa is 2 hours behind Porto Alegre. |
| Ouagadougou | +3:0 hours | Ouagadougou is 3 hours ahead of Porto Alegre. |
| Oulu | +5:0 hours | Oulu is 5 hours ahead of Porto Alegre. |
| Overland Park | -3:0 hours | Overland Park is 3 hours behind Porto Alegre. |
| Owensboro | -3:0 hours | Owensboro is 3 hours behind Porto Alegre. |
| Oxford | +3:0 hours | Oxford is 3 hours ahead of Porto Alegre. |
| Oxnard | -5:0 hours | Oxnard is 5 hours behind Porto Alegre. |
| Pabna | +9:0 hours | Pabna is 9 hours ahead of Porto Alegre. |
| Padang | +10:0 hours | Padang is 10 hours ahead of Porto Alegre. |
| Paderborn | +4:0 hours | Paderborn is 4 hours ahead of Porto Alegre. |
| Padrauna | +8:30 hours | Padrauna is 8 hours, 30 minutes ahead of Porto Alegre. |
| Pago Pago | -8:0 hours | Pago Pago is 8 hours behind Porto Alegre. |
| Painavu | +8:30 hours | Painavu is 8 hours, 30 minutes ahead of Porto Alegre. |
| Palakkad | +8:30 hours | Palakkad is 8 hours, 30 minutes ahead of Porto Alegre. |
| Palembang | +10:0 hours | Palembang is 10 hours ahead of Porto Alegre. |
| Palermo | +4:0 hours | Palermo is 4 hours ahead of Porto Alegre. |
| Pali | +8:30 hours | Pali is 8 hours, 30 minutes ahead of Porto Alegre. |
| Palikir | +14:0 hours | Palikir is 14 hours ahead of Porto Alegre. |
| Palm Springs | -5:0 hours | Palm Springs is 5 hours behind Porto Alegre. |
| Palma | +4:0 hours | Palma is 4 hours ahead of Porto Alegre. |
| Palmas | same time | There is no time difference between Palmas and Porto Alegre. |
| Palmerston North | * +16:0 hours | Palmerston North is 16 hours ahead of Porto Alegre. |
| Palo Alto | -5:0 hours | Palo Alto is 5 hours behind Porto Alegre. |
| Pampore | +8:30 hours | Pampore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Panaji | +8:30 hours | Panaji is 8 hours, 30 minutes ahead of Porto Alegre. |
| Panama | -2:0 hours | Panama is 2 hours behind Porto Alegre. |
| Panchkula | +8:30 hours | Panchkula is 8 hours, 30 minutes ahead of Porto Alegre. |
| Pangnirtung | -2:0 hours | Pangnirtung is 2 hours behind Porto Alegre. |
| Panipat | +8:30 hours | Panipat is 8 hours, 30 minutes ahead of Porto Alegre. |
| Panna | +8:30 hours | Panna is 8 hours, 30 minutes ahead of Porto Alegre. |
| Panskura | +8:30 hours | Panskura is 8 hours, 30 minutes ahead of Porto Alegre. |
| Panvel | +8:30 hours | Panvel is 8 hours, 30 minutes ahead of Porto Alegre. |
| Papeete | -7:0 hours | Papeete is 7 hours behind Porto Alegre. |
| Paphos | +5:0 hours | Paphos is 5 hours ahead of Porto Alegre. |
| Paradise | -5:0 hours | Paradise is 5 hours behind Porto Alegre. |
| Paradise (Canada) | -0:30 minutes | Paradise (Canada) is 30 minutes behind Porto Alegre. |
| Paradise (US) | -5:0 hours | Paradise (US) is 5 hours behind Porto Alegre. |
| Paralakhemundi | +8:30 hours | Paralakhemundi is 8 hours, 30 minutes ahead of Porto Alegre. |
| Paramaribo | same time | There is no time difference between Paramaribo and Porto Alegre. |
| Paramus | -2:0 hours | Paramus is 2 hours behind Porto Alegre. |
| Parana | same time | There is no time difference between Parana and Porto Alegre. |
| Parbhani | +8:30 hours | Parbhani is 8 hours, 30 minutes ahead of Porto Alegre. |
| Paris | +4:0 hours | Paris is 4 hours ahead of Porto Alegre. |
| Parnaiba | same time | There is no time difference between Parnaiba and Porto Alegre. |
| Pasadena | -5:0 hours | Pasadena is 5 hours behind Porto Alegre. |
| Pasadena (TX) | -3:0 hours | Pasadena (TX) is 3 hours behind Porto Alegre. |
| Passaic | -2:0 hours | Passaic is 2 hours behind Porto Alegre. |
| Passo Fundo | same time | There is no time difference between Passo Fundo and Porto Alegre. |
| Pasto | -2:0 hours | Pasto is 2 hours behind Porto Alegre. |
| Paterson | -2:0 hours | Paterson is 2 hours behind Porto Alegre. |
| Pathanamthitta | +8:30 hours | Pathanamthitta is 8 hours, 30 minutes ahead of Porto Alegre. |
| Patiala | +8:30 hours | Patiala is 8 hours, 30 minutes ahead of Porto Alegre. |
| Patna | +8:30 hours | Patna is 8 hours, 30 minutes ahead of Porto Alegre. |
| Patras | +5:0 hours | Patras is 5 hours ahead of Porto Alegre. |
| Pattaya | +10:0 hours | Pattaya is 10 hours ahead of Porto Alegre. |
| Pekalongan | +10:0 hours | Pekalongan is 10 hours ahead of Porto Alegre. |
| Pekanbaru | +10:0 hours | Pekanbaru is 10 hours ahead of Porto Alegre. |
| Pelotas | same time | There is no time difference between Pelotas and Porto Alegre. |
| Pematangsiantar | +10:0 hours | Pematangsiantar is 10 hours ahead of Porto Alegre. |
| Pembroke Pines | -2:0 hours | Pembroke Pines is 2 hours behind Porto Alegre. |
| Pensacola | -3:0 hours | Pensacola is 3 hours behind Porto Alegre. |
| Peoria | -3:0 hours | Peoria is 3 hours behind Porto Alegre. |
| Perambalur | +8:30 hours | Perambalur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Pereira | -2:0 hours | Pereira is 2 hours behind Porto Alegre. |
| Peristeri | +5:0 hours | Peristeri is 5 hours ahead of Porto Alegre. |
| Perm | +8:0 hours | Perm is 8 hours ahead of Porto Alegre. |
| Perpignan | +4:0 hours | Perpignan is 4 hours ahead of Porto Alegre. |
| Perth | +11:0 hours | Perth is 11 hours ahead of Porto Alegre. |
| Perth Amboy | -2:0 hours | Perth Amboy is 2 hours behind Porto Alegre. |
| Peshawar | +8:0 hours | Peshawar is 8 hours ahead of Porto Alegre. |
| Petah Tikva | +5:0 hours | Petah Tikva is 5 hours ahead of Porto Alegre. |
| Peterborough | +3:0 hours | Peterborough is 3 hours ahead of Porto Alegre. |
| Peterborough (Canada) | -2:0 hours | Peterborough (Canada) is 2 hours behind Porto Alegre. |
| Petersburg | -2:0 hours | Petersburg is 2 hours behind Porto Alegre. |
| Petropavlovsk-Kamchatsky | +15:0 hours | Petropavlovsk-Kamchatsky is 15 hours ahead of Porto Alegre. |
| Pforzheim | +4:0 hours | Pforzheim is 4 hours ahead of Porto Alegre. |
| Philadelphia | -2:0 hours | Philadelphia is 2 hours behind Porto Alegre. |
| Phnom Penh | +10:0 hours | Phnom Penh is 10 hours ahead of Porto Alegre. |
| Phoenix | -4:0 hours | Phoenix is 4 hours behind Porto Alegre. |
| Phuket | +10:0 hours | Phuket is 10 hours ahead of Porto Alegre. |
| Phulbani | +8:30 hours | Phulbani is 8 hours, 30 minutes ahead of Porto Alegre. |
| Pickering | -2:0 hours | Pickering is 2 hours behind Porto Alegre. |
| Pictou County | -1:0 hour | Pictou County is 1 hour behind Porto Alegre. |
| Pierre | -3:0 hours | Pierre is 3 hours behind Porto Alegre. |
| Pietermaritzburg | +5:0 hours | Pietermaritzburg is 5 hours ahead of Porto Alegre. |
| Pilibhit | +8:30 hours | Pilibhit is 8 hours, 30 minutes ahead of Porto Alegre. |
| Piraeus | +5:0 hours | Piraeus is 5 hours ahead of Porto Alegre. |
| Pirassununga | same time | There is no time difference between Pirassununga and Porto Alegre. |
| Pittsburgh | -2:0 hours | Pittsburgh is 2 hours behind Porto Alegre. |
| Piura | -2:0 hours | Piura is 2 hours behind Porto Alegre. |
| Plano | -3:0 hours | Plano is 3 hours behind Porto Alegre. |
| Playa del Carmen | -2:0 hours | Playa del Carmen is 2 hours behind Porto Alegre. |
| Plock | +4:0 hours | Plock is 4 hours ahead of Porto Alegre. |
| Plymouth | +3:0 hours | Plymouth is 3 hours ahead of Porto Alegre. |
| Plzen | +4:0 hours | Plzen is 4 hours ahead of Porto Alegre. |
| Pocatello | -4:0 hours | Pocatello is 4 hours behind Porto Alegre. |
| Podgorica | +4:0 hours | Podgorica is 4 hours ahead of Porto Alegre. |
| Pokhara | +8:45 hours | Pokhara is 8 hours, 45 minutes ahead of Porto Alegre. |
| Pomona | -5:0 hours | Pomona is 5 hours behind Porto Alegre. |
| Pond Inlet | -2:0 hours | Pond Inlet is 2 hours behind Porto Alegre. |
| Ponnani | +8:30 hours | Ponnani is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ponta Grossa | same time | There is no time difference between Ponta Grossa and Porto Alegre. |
| Pontianak | +10:0 hours | Pontianak is 10 hours ahead of Porto Alegre. |
| Poole | +3:0 hours | Poole is 3 hours ahead of Porto Alegre. |
| Porbandar | +8:30 hours | Porbandar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Pori | +5:0 hours | Pori is 5 hours ahead of Porto Alegre. |
| Port Blair | +8:30 hours | Port Blair is 8 hours, 30 minutes ahead of Porto Alegre. |
| Port Coquitlam | -5:0 hours | Port Coquitlam is 5 hours behind Porto Alegre. |
| Port Elizabeth | +5:0 hours | Port Elizabeth is 5 hours ahead of Porto Alegre. |
| Port Harcourt | +4:0 hours | Port Harcourt is 4 hours ahead of Porto Alegre. |
| Port Louis | +7:0 hours | Port Louis is 7 hours ahead of Porto Alegre. |
| Port Moresby | +13:0 hours | Port Moresby is 13 hours ahead of Porto Alegre. |
| Port of Spain | -1:0 hour | Port of Spain is 1 hour behind Porto Alegre. |
| Port St. Lucie | -2:0 hours | Port St. Lucie is 2 hours behind Porto Alegre. |
| Port Vila | +14:0 hours | Port Vila is 14 hours ahead of Porto Alegre. |
| Port-au-Prince | -2:0 hours | Port-au-Prince is 2 hours behind Porto Alegre. |
| Port-aux-Francais | +8:0 hours | Port-aux-Francais is 8 hours ahead of Porto Alegre. |
| Portage la Prairie | -3:0 hours | Portage la Prairie is 3 hours behind Porto Alegre. |
| Portimao | +3:0 hours | Portimao is 3 hours ahead of Porto Alegre. |
| Portland | -5:0 hours | Portland is 5 hours behind Porto Alegre. |
| Portland (ME) | -2:0 hours | Portland (ME) is 2 hours behind Porto Alegre. |
| Porto | +3:0 hours | Porto is 3 hours ahead of Porto Alegre. |
| Porto Novo | +4:0 hours | Porto Novo is 4 hours ahead of Porto Alegre. |
| Porto Velho | -1:0 hour | Porto Velho is 1 hour behind Porto Alegre. |
| Portsmouth | +3:0 hours | Portsmouth is 3 hours ahead of Porto Alegre. |
| Portsmouth (US) | -2:0 hours | Portsmouth (US) is 2 hours behind Porto Alegre. |
| Posadas | same time | There is no time difference between Posadas and Porto Alegre. |
| Post Falls | -5:0 hours | Post Falls is 5 hours behind Porto Alegre. |
| Potosi | -1:0 hour | Potosi is 1 hour behind Porto Alegre. |
| Potsdam | +4:0 hours | Potsdam is 4 hours ahead of Porto Alegre. |
| Poznan | +4:0 hours | Poznan is 4 hours ahead of Porto Alegre. |
| Prague | +4:0 hours | Prague is 4 hours ahead of Porto Alegre. |
| Praia | +2:0 hours | Praia is 2 hours ahead of Porto Alegre. |
| Pratapgarh | +8:30 hours | Pratapgarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Preston | +3:0 hours | Preston is 3 hours ahead of Porto Alegre. |
| Pretoria | +5:0 hours | Pretoria is 5 hours ahead of Porto Alegre. |
| Prievidza | +4:0 hours | Prievidza is 4 hours ahead of Porto Alegre. |
| Prince Albert | -3:0 hours | Prince Albert is 3 hours behind Porto Alegre. |
| Prince George | -5:0 hours | Prince George is 5 hours behind Porto Alegre. |
| Prince Rupert | -5:0 hours | Prince Rupert is 5 hours behind Porto Alegre. |
| Pristina | +4:0 hours | Pristina is 4 hours ahead of Porto Alegre. |
| Providence | -2:0 hours | Providence is 2 hours behind Porto Alegre. |
| Provincetown | -2:0 hours | Provincetown is 2 hours behind Porto Alegre. |
| Provo | -4:0 hours | Provo is 4 hours behind Porto Alegre. |
| Puducherry | +8:30 hours | Puducherry is 8 hours, 30 minutes ahead of Porto Alegre. |
| Pudukkottai | +8:30 hours | Pudukkottai is 8 hours, 30 minutes ahead of Porto Alegre. |
| Puebla | -3:0 hours | Puebla is 3 hours behind Porto Alegre. |
| Pueblo | -4:0 hours | Pueblo is 4 hours behind Porto Alegre. |
| Puerto Montt | * same time | There is no time difference between Puerto Montt and Porto Alegre. |
| Puerto Vallarta | -3:0 hours | Puerto Vallarta is 3 hours behind Porto Alegre. |
| Pullman | -5:0 hours | Pullman is 5 hours behind Porto Alegre. |
| Pune | +8:30 hours | Pune is 8 hours, 30 minutes ahead of Porto Alegre. |
| Punta Arenas | same time | There is no time difference between Punta Arenas and Porto Alegre. |
| Puri | +8:30 hours | Puri is 8 hours, 30 minutes ahead of Porto Alegre. |
| Purnia | +8:30 hours | Purnia is 8 hours, 30 minutes ahead of Porto Alegre. |
| Purulia | +8:30 hours | Purulia is 8 hours, 30 minutes ahead of Porto Alegre. |
| Pyongyang | +12:0 hours | Pyongyang is 12 hours ahead of Porto Alegre. |
| Qaanaaq | -1:0 hour | Qaanaaq is 1 hour behind Porto Alegre. |
| Qatif | +6:0 hours | Qatif is 6 hours ahead of Porto Alegre. |
| Qikiqtarjuaq | -2:0 hours | Qikiqtarjuaq is 2 hours behind Porto Alegre. |
| Qiqihar | +11:0 hours | Qiqihar is 11 hours ahead of Porto Alegre. |
| Quebec | -2:0 hours | Quebec is 2 hours behind Porto Alegre. |
| Queenstown | * +16:0 hours | Queenstown is 16 hours ahead of Porto Alegre. |
| Quetta | +8:0 hours | Quetta is 8 hours ahead of Porto Alegre. |
| Quetzaltenango | -3:0 hours | Quetzaltenango is 3 hours behind Porto Alegre. |
| Quezon | +11:0 hours | Quezon is 11 hours ahead of Porto Alegre. |
| Quispamsis | -1:0 hour | Quispamsis is 1 hour behind Porto Alegre. |
| Quito | -2:0 hours | Quito is 2 hours behind Porto Alegre. |
| Qyzylorda | +8:0 hours | Qyzylorda is 8 hours ahead of Porto Alegre. |
| Raanana | +5:0 hours | Raanana is 5 hours ahead of Porto Alegre. |
| Raba | +11:0 hours | Raba is 11 hours ahead of Porto Alegre. |
| Rabat | +4:0 hours | Rabat is 4 hours ahead of Porto Alegre. |
| Radom | +4:0 hours | Radom is 4 hours ahead of Porto Alegre. |
| Rae-Edzo | -4:0 hours | Rae-Edzo is 4 hours behind Porto Alegre. |
| Raebareli | +8:30 hours | Raebareli is 8 hours, 30 minutes ahead of Porto Alegre. |
| Raiganj | +8:30 hours | Raiganj is 8 hours, 30 minutes ahead of Porto Alegre. |
| Raipur | +8:30 hours | Raipur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Rajgarh | +8:30 hours | Rajgarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Rajkot | +8:30 hours | Rajkot is 8 hours, 30 minutes ahead of Porto Alegre. |
| Rajsamand | +8:30 hours | Rajsamand is 8 hours, 30 minutes ahead of Porto Alegre. |
| Raleigh | -2:0 hours | Raleigh is 2 hours behind Porto Alegre. |
| Ramanathapuram | +8:30 hours | Ramanathapuram is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ramat Gan | +5:0 hours | Ramat Gan is 5 hours ahead of Porto Alegre. |
| Rampur | +8:30 hours | Rampur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Rancagua | * same time | There is no time difference between Rancagua and Porto Alegre. |
| Ranchi | +8:30 hours | Ranchi is 8 hours, 30 minutes ahead of Porto Alegre. |
| Rancho Cucamonga | -5:0 hours | Rancho Cucamonga is 5 hours behind Porto Alegre. |
| Randers | +4:0 hours | Randers is 4 hours ahead of Porto Alegre. |
| Rankin Inlet | -3:0 hours | Rankin Inlet is 3 hours behind Porto Alegre. |
| Rapid City | -4:0 hours | Rapid City is 4 hours behind Porto Alegre. |
| Rarotonga | -7:0 hours | Rarotonga is 7 hours behind Porto Alegre. |
| Ras al-Khaimah | +7:0 hours | Ras al-Khaimah is 7 hours ahead of Porto Alegre. |
| Rasht | +6:30 hours | Rasht is 6 hours, 30 minutes ahead of Porto Alegre. |
| Ratingen | +4:0 hours | Ratingen is 4 hours ahead of Porto Alegre. |
| Ratlam | +8:30 hours | Ratlam is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ratnagiri | +8:30 hours | Ratnagiri is 8 hours, 30 minutes ahead of Porto Alegre. |
| Rawaki | +16:0 hours | Rawaki is 16 hours ahead of Porto Alegre. |
| Rawalpindi | +8:0 hours | Rawalpindi is 8 hours ahead of Porto Alegre. |
| Rayagada | +8:30 hours | Rayagada is 8 hours, 30 minutes ahead of Porto Alegre. |
| Reading | +3:0 hours | Reading is 3 hours ahead of Porto Alegre. |
| Recife | same time | There is no time difference between Recife and Porto Alegre. |
| Recklinghausen | +4:0 hours | Recklinghausen is 4 hours ahead of Porto Alegre. |
| Red Deer | -4:0 hours | Red Deer is 4 hours behind Porto Alegre. |
| Redmond | -5:0 hours | Redmond is 5 hours behind Porto Alegre. |
| Regensburg | +4:0 hours | Regensburg is 4 hours ahead of Porto Alegre. |
| Regina | -3:0 hours | Regina is 3 hours behind Porto Alegre. |
| Rehovot | +5:0 hours | Rehovot is 5 hours ahead of Porto Alegre. |
| Reims | +4:0 hours | Reims is 4 hours ahead of Porto Alegre. |
| Remscheid | +4:0 hours | Remscheid is 4 hours ahead of Porto Alegre. |
| Rennes | +4:0 hours | Rennes is 4 hours ahead of Porto Alegre. |
| Reno | -5:0 hours | Reno is 5 hours behind Porto Alegre. |
| Repentigny | -2:0 hours | Repentigny is 2 hours behind Porto Alegre. |
| Resistencia | same time | There is no time difference between Resistencia and Porto Alegre. |
| Reutlingen | +4:0 hours | Reutlingen is 4 hours ahead of Porto Alegre. |
| Rewa | +8:30 hours | Rewa is 8 hours, 30 minutes ahead of Porto Alegre. |
| Reykjavik | +3:0 hours | Reykjavik is 3 hours ahead of Porto Alegre. |
| Rheine | +4:0 hours | Rheine is 4 hours ahead of Porto Alegre. |
| Ribeirao Preto | same time | There is no time difference between Ribeirao Preto and Porto Alegre. |
| Richmond | -2:0 hours | Richmond is 2 hours behind Porto Alegre. |
| Richmond (Canada) | -5:0 hours | Richmond (Canada) is 5 hours behind Porto Alegre. |
| Richmond Hill | -2:0 hours | Richmond Hill is 2 hours behind Porto Alegre. |
| Riga | +5:0 hours | Riga is 5 hours ahead of Porto Alegre. |
| Rimouski | -2:0 hours | Rimouski is 2 hours behind Porto Alegre. |
| Rio Branco | -2:0 hours | Rio Branco is 2 hours behind Porto Alegre. |
| Rio de Janeiro | same time | There is no time difference between Rio de Janeiro and Porto Alegre. |
| Rio Gallegos | same time | There is no time difference between Rio Gallegos and Porto Alegre. |
| Rio Grande | same time | There is no time difference between Rio Grande and Porto Alegre. |
| Rishon LeZion | +5:0 hours | Rishon LeZion is 5 hours ahead of Porto Alegre. |
| Riverside | -5:0 hours | Riverside is 5 hours behind Porto Alegre. |
| Riverview | -1:0 hour | Riverview is 1 hour behind Porto Alegre. |
| Riyadh | +6:0 hours | Riyadh is 6 hours ahead of Porto Alegre. |
| Road Town | -1:0 hour | Road Town is 1 hour behind Porto Alegre. |
| Roanoke | -2:0 hours | Roanoke is 2 hours behind Porto Alegre. |
| Roatan | -3:0 hours | Roatan is 3 hours behind Porto Alegre. |
| Robertsganj | +8:30 hours | Robertsganj is 8 hours, 30 minutes ahead of Porto Alegre. |
| Rochester | -2:0 hours | Rochester is 2 hours behind Porto Alegre. |
| Rockford | -3:0 hours | Rockford is 3 hours behind Porto Alegre. |
| Rockhampton | +13:0 hours | Rockhampton is 13 hours ahead of Porto Alegre. |
| Rodhos | +5:0 hours | Rodhos is 5 hours ahead of Porto Alegre. |
| Rome | +4:0 hours | Rome is 4 hours ahead of Porto Alegre. |
| Roorkee | +8:30 hours | Roorkee is 8 hours, 30 minutes ahead of Porto Alegre. |
| Rosario | same time | There is no time difference between Rosario and Porto Alegre. |
| Roseau | -1:0 hour | Roseau is 1 hour behind Porto Alegre. |
| Roskilde | +4:0 hours | Roskilde is 4 hours ahead of Porto Alegre. |
| Rostock | +4:0 hours | Rostock is 4 hours ahead of Porto Alegre. |
| Rotherham | +3:0 hours | Rotherham is 3 hours ahead of Porto Alegre. |
| Rothesay | -1:0 hour | Rothesay is 1 hour behind Porto Alegre. |
| Rotorua | * +16:0 hours | Rotorua is 16 hours ahead of Porto Alegre. |
| Rotterdam | +4:0 hours | Rotterdam is 4 hours ahead of Porto Alegre. |
| Rouen | +4:0 hours | Rouen is 4 hours ahead of Porto Alegre. |
| Rourkela | +8:30 hours | Rourkela is 8 hours, 30 minutes ahead of Porto Alegre. |
| Rouyn-Noranda | -2:0 hours | Rouyn-Noranda is 2 hours behind Porto Alegre. |
| Rovaniemi | +5:0 hours | Rovaniemi is 5 hours ahead of Porto Alegre. |
| Ruda Slaska | +4:0 hours | Ruda Slaska is 4 hours ahead of Porto Alegre. |
| Rupnagar | +8:30 hours | Rupnagar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Rustenburg | +5:0 hours | Rustenburg is 5 hours ahead of Porto Alegre. |
| Rybnik | +4:0 hours | Rybnik is 4 hours ahead of Porto Alegre. |
| Rzeszow | +4:0 hours | Rzeszow is 4 hours ahead of Porto Alegre. |
| S-Hertogenbosch | +4:0 hours | S-Hertogenbosch is 4 hours ahead of Porto Alegre. |
| Saanich | -5:0 hours | Saanich is 5 hours behind Porto Alegre. |
| Saarbrucken | +4:0 hours | Saarbrucken is 4 hours ahead of Porto Alegre. |
| Sabha | +5:0 hours | Sabha is 5 hours ahead of Porto Alegre. |
| Sacramento | -5:0 hours | Sacramento is 5 hours behind Porto Alegre. |
| Safed | +5:0 hours | Safed is 5 hours ahead of Porto Alegre. |
| Sagamihara | +12:0 hours | Sagamihara is 12 hours ahead of Porto Alegre. |
| Sagar | +8:30 hours | Sagar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Saguenay | -2:0 hours | Saguenay is 2 hours behind Porto Alegre. |
| Saharanpur | +8:30 hours | Saharanpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Saharsa | +8:30 hours | Saharsa is 8 hours, 30 minutes ahead of Porto Alegre. |
| Sahiwal | +8:0 hours | Sahiwal is 8 hours ahead of Porto Alegre. |
| Saidpur | +9:0 hours | Saidpur is 9 hours ahead of Porto Alegre. |
| Saint Denis | +4:0 hours | Saint Denis is 4 hours ahead of Porto Alegre. |
| Saint Georges | -1:0 hour | Saint Georges is 1 hour behind Porto Alegre. |
| Saint Helier | +3:0 hours | Saint Helier is 3 hours ahead of Porto Alegre. |
| Saint John | -1:0 hour | Saint John is 1 hour behind Porto Alegre. |
| Saint Johns | -1:0 hour | Saint Johns is 1 hour behind Porto Alegre. |
| Saint Paul | -3:0 hours | Saint Paul is 3 hours behind Porto Alegre. |
| Saint-Denis | +7:0 hours | Saint-Denis is 7 hours ahead of Porto Alegre. |
| Saint-Etienne | +4:0 hours | Saint-Etienne is 4 hours ahead of Porto Alegre. |
| Saint-Hyacinthe | -2:0 hours | Saint-Hyacinthe is 2 hours behind Porto Alegre. |
| Saint-Jean-sur-Richelieu | -2:0 hours | Saint-Jean-sur-Richelieu is 2 hours behind Porto Alegre. |
| Saint-Jerome | -2:0 hours | Saint-Jerome is 2 hours behind Porto Alegre. |
| Saint-Petersburg | +6:0 hours | Saint-Petersburg is 6 hours ahead of Porto Alegre. |
| Saint-Pierre | same time | There is no time difference between Saint-Pierre and Porto Alegre. |
| Saipan | +13:0 hours | Saipan is 13 hours ahead of Porto Alegre. |
| Salem | -5:0 hours | Salem is 5 hours behind Porto Alegre. |
| Salem (India) | +8:30 hours | Salem (India) is 8 hours, 30 minutes ahead of Porto Alegre. |
| Salina | -3:0 hours | Salina is 3 hours behind Porto Alegre. |
| Salinas | -5:0 hours | Salinas is 5 hours behind Porto Alegre. |
| Salt Lake City | -4:0 hours | Salt Lake City is 4 hours behind Porto Alegre. |
| Salta | same time | There is no time difference between Salta and Porto Alegre. |
| Saltillo | -3:0 hours | Saltillo is 3 hours behind Porto Alegre. |
| Salvador | same time | There is no time difference between Salvador and Porto Alegre. |
| Salzburg | +4:0 hours | Salzburg is 4 hours ahead of Porto Alegre. |
| Salzgitter | +4:0 hours | Salzgitter is 4 hours ahead of Porto Alegre. |
| Samara | +7:0 hours | Samara is 7 hours ahead of Porto Alegre. |
| Samarinda | +11:0 hours | Samarinda is 11 hours ahead of Porto Alegre. |
| Samastipur | +8:30 hours | Samastipur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Sambalpur | +8:30 hours | Sambalpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Samford | +13:0 hours | Samford is 13 hours ahead of Porto Alegre. |
| San Antonio | -3:0 hours | San Antonio is 3 hours behind Porto Alegre. |
| San Bernardino | -5:0 hours | San Bernardino is 5 hours behind Porto Alegre. |
| San Buenaventura | -5:0 hours | San Buenaventura is 5 hours behind Porto Alegre. |
| San Cristobal de las Casas | -3:0 hours | San Cristobal de las Casas is 3 hours behind Porto Alegre. |
| San Diego | -5:0 hours | San Diego is 5 hours behind Porto Alegre. |
| San Francisco | -5:0 hours | San Francisco is 5 hours behind Porto Alegre. |
| San Jose | -5:0 hours | San Jose is 5 hours behind Porto Alegre. |
| San Jose (Costa Rica) | -3:0 hours | San Jose (Costa Rica) is 3 hours behind Porto Alegre. |
| San Juan | -1:0 hour | San Juan is 1 hour behind Porto Alegre. |
| San Juan (Argentina) | same time | There is no time difference between San Juan (Argentina) and Porto Alegre. |
| San Luis | same time | There is no time difference between San Luis and Porto Alegre. |
| San Luis Potosi | -3:0 hours | San Luis Potosi is 3 hours behind Porto Alegre. |
| San Marino | +4:0 hours | San Marino is 4 hours ahead of Porto Alegre. |
| San Pedro Sula | -3:0 hours | San Pedro Sula is 3 hours behind Porto Alegre. |
| San Salvador | -3:0 hours | San Salvador is 3 hours behind Porto Alegre. |
| Sana | +6:0 hours | Sana is 6 hours ahead of Porto Alegre. |
| Sanandaj | +6:30 hours | Sanandaj is 6 hours, 30 minutes ahead of Porto Alegre. |
| Sandefjord | +4:0 hours | Sandefjord is 4 hours ahead of Porto Alegre. |
| Sandnes | +4:0 hours | Sandnes is 4 hours ahead of Porto Alegre. |
| Sangli | +8:30 hours | Sangli is 8 hours, 30 minutes ahead of Porto Alegre. |
| Sangrur | +8:30 hours | Sangrur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Santa Ana | -3:0 hours | Santa Ana is 3 hours behind Porto Alegre. |
| Santa Barbara | -5:0 hours | Santa Barbara is 5 hours behind Porto Alegre. |
| Santa Clara | -5:0 hours | Santa Clara is 5 hours behind Porto Alegre. |
| Santa Clarita | -5:0 hours | Santa Clarita is 5 hours behind Porto Alegre. |
| Santa Cruz | -1:0 hour | Santa Cruz is 1 hour behind Porto Alegre. |
| Santa Cruz (Spain) | +3:0 hours | Santa Cruz (Spain) is 3 hours ahead of Porto Alegre. |
| Santa Fe | -4:0 hours | Santa Fe is 4 hours behind Porto Alegre. |
| Santa Fe (Argentina) | same time | There is no time difference between Santa Fe (Argentina) and Porto Alegre. |
| Santa Maria | same time | There is no time difference between Santa Maria and Porto Alegre. |
| Santa Marta | -2:0 hours | Santa Marta is 2 hours behind Porto Alegre. |
| Santa Monica | -5:0 hours | Santa Monica is 5 hours behind Porto Alegre. |
| Santa Rosa | -5:0 hours | Santa Rosa is 5 hours behind Porto Alegre. |
| Santa Rosa (Argentina) | same time | There is no time difference between Santa Rosa (Argentina) and Porto Alegre. |
| Santiago | * same time | There is no time difference between Santiago and Porto Alegre. |
| Santiago de Cuba | -2:0 hours | Santiago de Cuba is 2 hours behind Porto Alegre. |
| Santiago del Estero | same time | There is no time difference between Santiago del Estero and Porto Alegre. |
| Santo Domingo | -1:0 hour | Santo Domingo is 1 hour behind Porto Alegre. |
| Santos | same time | There is no time difference between Santos and Porto Alegre. |
| Sao Jose do Rio Preto | same time | There is no time difference between Sao Jose do Rio Preto and Porto Alegre. |
| Sao Luis | same time | There is no time difference between Sao Luis and Porto Alegre. |
| Sao Paulo | same time | There is no time difference between Sao Paulo and Porto Alegre. |
| Sao Tome | +3:0 hours | Sao Tome is 3 hours ahead of Porto Alegre. |
| Sapporo | +12:0 hours | Sapporo is 12 hours ahead of Porto Alegre. |
| Sarajevo | +4:0 hours | Sarajevo is 4 hours ahead of Porto Alegre. |
| Sarasota | -2:0 hours | Sarasota is 2 hours behind Porto Alegre. |
| Sargodha | +8:0 hours | Sargodha is 8 hours ahead of Porto Alegre. |
| Sari | +6:30 hours | Sari is 6 hours, 30 minutes ahead of Porto Alegre. |
| Sarnia | -2:0 hours | Sarnia is 2 hours behind Porto Alegre. |
| Sarpsborg | +4:0 hours | Sarpsborg is 4 hours ahead of Porto Alegre. |
| Sasaram | +8:30 hours | Sasaram is 8 hours, 30 minutes ahead of Porto Alegre. |
| Saskatoon | -3:0 hours | Saskatoon is 3 hours behind Porto Alegre. |
| Sassari | +4:0 hours | Sassari is 4 hours ahead of Porto Alegre. |
| Satara | +8:30 hours | Satara is 8 hours, 30 minutes ahead of Porto Alegre. |
| Satna | +8:30 hours | Satna is 8 hours, 30 minutes ahead of Porto Alegre. |
| Sault Ste. Marie | -2:0 hours | Sault Ste. Marie is 2 hours behind Porto Alegre. |
| Savannah | -2:0 hours | Savannah is 2 hours behind Porto Alegre. |
| Sawai Madhopur | +8:30 hours | Sawai Madhopur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Schaffhausen | +4:0 hours | Schaffhausen is 4 hours ahead of Porto Alegre. |
| Schwerin | +4:0 hours | Schwerin is 4 hours ahead of Porto Alegre. |
| Scottsdale | -4:0 hours | Scottsdale is 4 hours behind Porto Alegre. |
| Scranton | -2:0 hours | Scranton is 2 hours behind Porto Alegre. |
| Seattle | -5:0 hours | Seattle is 5 hours behind Porto Alegre. |
| Sebastian | +4:0 hours | Sebastian is 4 hours ahead of Porto Alegre. |
| Sedona | -4:0 hours | Sedona is 4 hours behind Porto Alegre. |
| Sehore | +8:30 hours | Sehore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Selkirk | -3:0 hours | Selkirk is 3 hours behind Porto Alegre. |
| Semarang | +10:0 hours | Semarang is 10 hours ahead of Porto Alegre. |
| Sendai | +12:0 hours | Sendai is 12 hours ahead of Porto Alegre. |
| Seoni | +8:30 hours | Seoni is 8 hours, 30 minutes ahead of Porto Alegre. |
| Seoul | +12:0 hours | Seoul is 12 hours ahead of Porto Alegre. |
| Seremban | +11:0 hours | Seremban is 11 hours ahead of Porto Alegre. |
| Setubal | +3:0 hours | Setubal is 3 hours ahead of Porto Alegre. |
| Sevilla | +4:0 hours | Sevilla is 4 hours ahead of Porto Alegre. |
| Shahdol | +8:30 hours | Shahdol is 8 hours, 30 minutes ahead of Porto Alegre. |
| Shahjahanpur | +8:30 hours | Shahjahanpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Shajapur | +8:30 hours | Shajapur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Shanghai | +11:0 hours | Shanghai is 11 hours ahead of Porto Alegre. |
| Shantou | +11:0 hours | Shantou is 11 hours ahead of Porto Alegre. |
| Sharjah | +7:0 hours | Sharjah is 7 hours ahead of Porto Alegre. |
| Shawinigan | -2:0 hours | Shawinigan is 2 hours behind Porto Alegre. |
| Sheffield | +3:0 hours | Sheffield is 3 hours ahead of Porto Alegre. |
| Sheikhpura | +8:30 hours | Sheikhpura is 8 hours, 30 minutes ahead of Porto Alegre. |
| Shenyang | +11:0 hours | Shenyang is 11 hours ahead of Porto Alegre. |
| Shenzhen | +11:0 hours | Shenzhen is 11 hours ahead of Porto Alegre. |
| Sheohar | +8:30 hours | Sheohar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Sheopur | +8:30 hours | Sheopur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Shepparton | * +14:0 hours | Shepparton is 14 hours ahead of Porto Alegre. |
| Sherbrooke | -2:0 hours | Sherbrooke is 2 hours behind Porto Alegre. |
| Shijiazhuang | +11:0 hours | Shijiazhuang is 11 hours ahead of Porto Alegre. |
| Shillong | +8:30 hours | Shillong is 8 hours, 30 minutes ahead of Porto Alegre. |
| Shimla | +8:30 hours | Shimla is 8 hours, 30 minutes ahead of Porto Alegre. |
| Shiraz | +6:30 hours | Shiraz is 6 hours, 30 minutes ahead of Porto Alegre. |
| Shivpuri | +8:30 hours | Shivpuri is 8 hours, 30 minutes ahead of Porto Alegre. |
| Shizuoka | +12:0 hours | Shizuoka is 12 hours ahead of Porto Alegre. |
| Shreveport | -3:0 hours | Shreveport is 3 hours behind Porto Alegre. |
| Sialkot | +8:0 hours | Sialkot is 8 hours ahead of Porto Alegre. |
| Sian | +11:0 hours | Sian is 11 hours ahead of Porto Alegre. |
| Sibsagar | +8:30 hours | Sibsagar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Sidhi | +8:30 hours | Sidhi is 8 hours, 30 minutes ahead of Porto Alegre. |
| Siegen | +4:0 hours | Siegen is 4 hours ahead of Porto Alegre. |
| Siem Reap | +10:0 hours | Siem Reap is 10 hours ahead of Porto Alegre. |
| Sihora Road | +8:30 hours | Sihora Road is 8 hours, 30 minutes ahead of Porto Alegre. |
| Sikar | +8:30 hours | Sikar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Silchar | +8:30 hours | Silchar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Silvassa | +8:30 hours | Silvassa is 8 hours, 30 minutes ahead of Porto Alegre. |
| Simi Valley | -5:0 hours | Simi Valley is 5 hours behind Porto Alegre. |
| Sindri | +8:30 hours | Sindri is 8 hours, 30 minutes ahead of Porto Alegre. |
| Singapore | +11:0 hours | Singapore is 11 hours ahead of Porto Alegre. |
| Singaraja | +11:0 hours | Singaraja is 11 hours ahead of Porto Alegre. |
| Sion | +4:0 hours | Sion is 4 hours ahead of Porto Alegre. |
| Sioux Falls | -3:0 hours | Sioux Falls is 3 hours behind Porto Alegre. |
| Sitamarhi | +8:30 hours | Sitamarhi is 8 hours, 30 minutes ahead of Porto Alegre. |
| Sitapur | +8:30 hours | Sitapur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Sivaganga | +8:30 hours | Sivaganga is 8 hours, 30 minutes ahead of Porto Alegre. |
| Siwan | +8:30 hours | Siwan is 8 hours, 30 minutes ahead of Porto Alegre. |
| Skien | +4:0 hours | Skien is 4 hours ahead of Porto Alegre. |
| Skopje | +4:0 hours | Skopje is 4 hours ahead of Porto Alegre. |
| Slough | +3:0 hours | Slough is 3 hours ahead of Porto Alegre. |
| Slupsk | +4:0 hours | Slupsk is 4 hours ahead of Porto Alegre. |
| Sobral | same time | There is no time difference between Sobral and Porto Alegre. |
| Sochi | +6:0 hours | Sochi is 6 hours ahead of Porto Alegre. |
| Sodertalje | +4:0 hours | Sodertalje is 4 hours ahead of Porto Alegre. |
| Sofia | +5:0 hours | Sofia is 5 hours ahead of Porto Alegre. |
| Solapur | +8:30 hours | Solapur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Solingen | +4:0 hours | Solingen is 4 hours ahead of Porto Alegre. |
| Sonepur | +8:30 hours | Sonepur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Sopore | +8:30 hours | Sopore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Sopron | +4:0 hours | Sopron is 4 hours ahead of Porto Alegre. |
| Sorocaba | same time | There is no time difference between Sorocaba and Porto Alegre. |
| Sosnowiec | +4:0 hours | Sosnowiec is 4 hours ahead of Porto Alegre. |
| South Bend | -2:0 hours | South Bend is 2 hours behind Porto Alegre. |
| Southampton | +3:0 hours | Southampton is 3 hours ahead of Porto Alegre. |
| Southend-on-Sea | +3:0 hours | Southend-on-Sea is 3 hours ahead of Porto Alegre. |
| Spartanburg | -2:0 hours | Spartanburg is 2 hours behind Porto Alegre. |
| Spittal an der Drau | +4:0 hours | Spittal an der Drau is 4 hours ahead of Porto Alegre. |
| Spokane | -5:0 hours | Spokane is 5 hours behind Porto Alegre. |
| Springfield | -2:0 hours | Springfield is 2 hours behind Porto Alegre. |
| Springfield (Canada) | -3:0 hours | Springfield (Canada) is 3 hours behind Porto Alegre. |
| Springfield (IL) | -3:0 hours | Springfield (IL) is 3 hours behind Porto Alegre. |
| Springfield (MO) | -3:0 hours | Springfield (MO) is 3 hours behind Porto Alegre. |
| Sri Jayawardenapura Kotte | +8:30 hours | Sri Jayawardenapura Kotte is 8 hours, 30 minutes ahead of Porto Alegre. |
| Srinagar | +8:30 hours | Srinagar is 8 hours, 30 minutes ahead of Porto Alegre. |
| St Gallen | +4:0 hours | St Gallen is 4 hours ahead of Porto Alegre. |
| St Helens | +3:0 hours | St Helens is 3 hours ahead of Porto Alegre. |
| St Peter Port | +3:0 hours | St Peter Port is 3 hours ahead of Porto Alegre. |
| St. Albert | -4:0 hours | St. Albert is 4 hours behind Porto Alegre. |
| St. Andrews | -3:0 hours | St. Andrews is 3 hours behind Porto Alegre. |
| St. Augustine | -2:0 hours | St. Augustine is 2 hours behind Porto Alegre. |
| St. Catharines | -2:0 hours | St. Catharines is 2 hours behind Porto Alegre. |
| St. Clements | -3:0 hours | St. Clements is 3 hours behind Porto Alegre. |
| St. Johns | -0:30 minutes | St. Johns is 30 minutes behind Porto Alegre. |
| St. Louis | -3:0 hours | St. Louis is 3 hours behind Porto Alegre. |
| St. Moritz | +4:0 hours | St. Moritz is 4 hours ahead of Porto Alegre. |
| St. Petersburg | -2:0 hours | St. Petersburg is 2 hours behind Porto Alegre. |
| St. Polten | +4:0 hours | St. Polten is 4 hours ahead of Porto Alegre. |
| Stamford | -2:0 hours | Stamford is 2 hours behind Porto Alegre. |
| Stanley | same time | There is no time difference between Stanley and Porto Alegre. |
| Stavanger | +4:0 hours | Stavanger is 4 hours ahead of Porto Alegre. |
| Steinbach | -3:0 hours | Steinbach is 3 hours behind Porto Alegre. |
| Stellenbosch | +5:0 hours | Stellenbosch is 5 hours ahead of Porto Alegre. |
| Stephenville | -0:30 minutes | Stephenville is 30 minutes behind Porto Alegre. |
| Sterling Heights | -2:0 hours | Sterling Heights is 2 hours behind Porto Alegre. |
| Steyr | +4:0 hours | Steyr is 4 hours ahead of Porto Alegre. |
| Stillwater | -3:0 hours | Stillwater is 3 hours behind Porto Alegre. |
| Stockholm | +4:0 hours | Stockholm is 4 hours ahead of Porto Alegre. |
| Stockport | +3:0 hours | Stockport is 3 hours ahead of Porto Alegre. |
| Stockton | -5:0 hours | Stockton is 5 hours behind Porto Alegre. |
| Stoke-on-Trent | +3:0 hours | Stoke-on-Trent is 3 hours ahead of Porto Alegre. |
| Strasbourg | +4:0 hours | Strasbourg is 4 hours ahead of Porto Alegre. |
| Strathcona County | -4:0 hours | Strathcona County is 4 hours behind Porto Alegre. |
| Stuttgart | +4:0 hours | Stuttgart is 4 hours ahead of Porto Alegre. |
| Sucre | -1:0 hour | Sucre is 1 hour behind Porto Alegre. |
| Sulaimaniya | +6:0 hours | Sulaimaniya is 6 hours ahead of Porto Alegre. |
| Sultanpur | +8:30 hours | Sultanpur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Summerside | -1:0 hour | Summerside is 1 hour behind Porto Alegre. |
| Sundergarh | +8:30 hours | Sundergarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Sunderland | +3:0 hours | Sunderland is 3 hours ahead of Porto Alegre. |
| Sundsvall | +4:0 hours | Sundsvall is 4 hours ahead of Porto Alegre. |
| Sunnyvale | -5:0 hours | Sunnyvale is 5 hours behind Porto Alegre. |
| Sunrise Manor | -5:0 hours | Sunrise Manor is 5 hours behind Porto Alegre. |
| Sunshine Coast | +13:0 hours | Sunshine Coast is 13 hours ahead of Porto Alegre. |
| Supaul | +8:30 hours | Supaul is 8 hours, 30 minutes ahead of Porto Alegre. |
| Surabaya | +10:0 hours | Surabaya is 10 hours ahead of Porto Alegre. |
| Surakarta | +10:0 hours | Surakarta is 10 hours ahead of Porto Alegre. |
| Surat | +8:30 hours | Surat is 8 hours, 30 minutes ahead of Porto Alegre. |
| Suri | +8:30 hours | Suri is 8 hours, 30 minutes ahead of Porto Alegre. |
| Surrey | -5:0 hours | Surrey is 5 hours behind Porto Alegre. |
| Sutton Coldfield | +3:0 hours | Sutton Coldfield is 3 hours ahead of Porto Alegre. |
| Suva | +15:0 hours | Suva is 15 hours ahead of Porto Alegre. |
| Suzhou | +11:0 hours | Suzhou is 11 hours ahead of Porto Alegre. |
| Swansea | +3:0 hours | Swansea is 3 hours ahead of Porto Alegre. |
| Swindon | +3:0 hours | Swindon is 3 hours ahead of Porto Alegre. |
| Sydney | * +14:0 hours | Sydney is 14 hours ahead of Porto Alegre. |
| Sylhet | +9:0 hours | Sylhet is 9 hours ahead of Porto Alegre. |
| Syracuse | -2:0 hours | Syracuse is 2 hours behind Porto Alegre. |
| Szczecin | +4:0 hours | Szczecin is 4 hours ahead of Porto Alegre. |
| Tabor | +4:0 hours | Tabor is 4 hours ahead of Porto Alegre. |
| Tabriz | +6:30 hours | Tabriz is 6 hours, 30 minutes ahead of Porto Alegre. |
| Tacoma | -5:0 hours | Tacoma is 5 hours behind Porto Alegre. |
| Tadepalligudem | +8:30 hours | Tadepalligudem is 8 hours, 30 minutes ahead of Porto Alegre. |
| Taegu | +12:0 hours | Taegu is 12 hours ahead of Porto Alegre. |
| Taichung | +11:0 hours | Taichung is 11 hours ahead of Porto Alegre. |
| Taiohae | -6:30 hours | Taiohae is 6 hours, 30 minutes behind Porto Alegre. |
| Taipei | +11:0 hours | Taipei is 11 hours ahead of Porto Alegre. |
| Taiyuan | +11:0 hours | Taiyuan is 11 hours ahead of Porto Alegre. |
| Talca | * same time | There is no time difference between Talca and Porto Alegre. |
| Talcahuano | * same time | There is no time difference between Talcahuano and Porto Alegre. |
| Tallahassee | -2:0 hours | Tallahassee is 2 hours behind Porto Alegre. |
| Tallinn | +5:0 hours | Tallinn is 5 hours ahead of Porto Alegre. |
| Tamluk | +8:30 hours | Tamluk is 8 hours, 30 minutes ahead of Porto Alegre. |
| Tampa | -2:0 hours | Tampa is 2 hours behind Porto Alegre. |
| Tampere | +5:0 hours | Tampere is 5 hours ahead of Porto Alegre. |
| Tangier | +4:0 hours | Tangier is 4 hours ahead of Porto Alegre. |
| Tangshan | +11:0 hours | Tangshan is 11 hours ahead of Porto Alegre. |
| Tanjungkarang | +10:0 hours | Tanjungkarang is 10 hours ahead of Porto Alegre. |
| Tarawa | +15:0 hours | Tarawa is 15 hours ahead of Porto Alegre. |
| Targu Mures | +5:0 hours | Targu Mures is 5 hours ahead of Porto Alegre. |
| Tarn Taran Sahib | +8:30 hours | Tarn Taran Sahib is 8 hours, 30 minutes ahead of Porto Alegre. |
| Tarnow | +4:0 hours | Tarnow is 4 hours ahead of Porto Alegre. |
| Tashkent | +8:0 hours | Tashkent is 8 hours ahead of Porto Alegre. |
| Tasikmalaya | +10:0 hours | Tasikmalaya is 10 hours ahead of Porto Alegre. |
| Taunton | +3:0 hours | Taunton is 3 hours ahead of Porto Alegre. |
| Taupo | * +16:0 hours | Taupo is 16 hours ahead of Porto Alegre. |
| Tauranga | * +16:0 hours | Tauranga is 16 hours ahead of Porto Alegre. |
| Taylors | -2:0 hours | Taylors is 2 hours behind Porto Alegre. |
| Tbilisi | +7:0 hours | Tbilisi is 7 hours ahead of Porto Alegre. |
| Te Awamutu | * +16:0 hours | Te Awamutu is 16 hours ahead of Porto Alegre. |
| Tegal | +10:0 hours | Tegal is 10 hours ahead of Porto Alegre. |
| Tegucigalpa | -3:0 hours | Tegucigalpa is 3 hours behind Porto Alegre. |
| Tehran | +6:30 hours | Tehran is 6 hours, 30 minutes ahead of Porto Alegre. |
| Tel Aviv | +5:0 hours | Tel Aviv is 5 hours ahead of Porto Alegre. |
| Tela | -3:0 hours | Tela is 3 hours behind Porto Alegre. |
| Telford | +3:0 hours | Telford is 3 hours ahead of Porto Alegre. |
| Tempe | -4:0 hours | Tempe is 4 hours behind Porto Alegre. |
| Temple | -3:0 hours | Temple is 3 hours behind Porto Alegre. |
| Temuco | * same time | There is no time difference between Temuco and Porto Alegre. |
| Teofilo Otoni | same time | There is no time difference between Teofilo Otoni and Porto Alegre. |
| Teresina | same time | There is no time difference between Teresina and Porto Alegre. |
| Ternate | +12:0 hours | Ternate is 12 hours ahead of Porto Alegre. |
| Terrebonne | -2:0 hours | Terrebonne is 2 hours behind Porto Alegre. |
| Thabazimbi | +5:0 hours | Thabazimbi is 5 hours ahead of Porto Alegre. |
| Thalassery | +8:30 hours | Thalassery is 8 hours, 30 minutes ahead of Porto Alegre. |
| Thane | +8:30 hours | Thane is 8 hours, 30 minutes ahead of Porto Alegre. |
| Thanjavur | +8:30 hours | Thanjavur is 8 hours, 30 minutes ahead of Porto Alegre. |
| The Hague | +4:0 hours | The Hague is 4 hours ahead of Porto Alegre. |
| The Settlement | +10:0 hours | The Settlement is 10 hours ahead of Porto Alegre. |
| The Valley | -1:0 hour | The Valley is 1 hour behind Porto Alegre. |
| Theni | +8:30 hours | Theni is 8 hours, 30 minutes ahead of Porto Alegre. |
| Thessaloniki | +5:0 hours | Thessaloniki is 5 hours ahead of Porto Alegre. |
| Thimphu | +9:0 hours | Thimphu is 9 hours ahead of Porto Alegre. |
| Thiruvananthapuram | +8:30 hours | Thiruvananthapuram is 8 hours, 30 minutes ahead of Porto Alegre. |
| Thiruvannaamalai | +8:30 hours | Thiruvannaamalai is 8 hours, 30 minutes ahead of Porto Alegre. |
| Thompson | -3:0 hours | Thompson is 3 hours behind Porto Alegre. |
| Thoothukudi | +8:30 hours | Thoothukudi is 8 hours, 30 minutes ahead of Porto Alegre. |
| Thousand Oaks | -5:0 hours | Thousand Oaks is 5 hours behind Porto Alegre. |
| Thrissur | +8:30 hours | Thrissur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Thun | +4:0 hours | Thun is 4 hours ahead of Porto Alegre. |
| Thunder Bay | -2:0 hours | Thunder Bay is 2 hours behind Porto Alegre. |
| Tianjin | +11:0 hours | Tianjin is 11 hours ahead of Porto Alegre. |
| Tijuana | -5:0 hours | Tijuana is 5 hours behind Porto Alegre. |
| Tikamgarh | +8:30 hours | Tikamgarh is 8 hours, 30 minutes ahead of Porto Alegre. |
| Tilburg | +4:0 hours | Tilburg is 4 hours ahead of Porto Alegre. |
| Timbuktu | +3:0 hours | Timbuktu is 3 hours ahead of Porto Alegre. |
| Timmins | -2:0 hours | Timmins is 2 hours behind Porto Alegre. |
| Tinsukia | +8:30 hours | Tinsukia is 8 hours, 30 minutes ahead of Porto Alegre. |
| Tirane | +4:0 hours | Tirane is 4 hours ahead of Porto Alegre. |
| Tiraspol | +5:0 hours | Tiraspol is 5 hours ahead of Porto Alegre. |
| Tiruchirapalli | +8:30 hours | Tiruchirapalli is 8 hours, 30 minutes ahead of Porto Alegre. |
| Tirumala | +8:30 hours | Tirumala is 8 hours, 30 minutes ahead of Porto Alegre. |
| Tirunelveli | +8:30 hours | Tirunelveli is 8 hours, 30 minutes ahead of Porto Alegre. |
| Tiruvallur | +8:30 hours | Tiruvallur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Tiruvarur | +8:30 hours | Tiruvarur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Tofol | +14:0 hours | Tofol is 14 hours ahead of Porto Alegre. |
| Tokyo | +12:0 hours | Tokyo is 12 hours ahead of Porto Alegre. |
| Toledo | -2:0 hours | Toledo is 2 hours behind Porto Alegre. |
| Tonk | +8:30 hours | Tonk is 8 hours, 30 minutes ahead of Porto Alegre. |
| Tonsberg | +4:0 hours | Tonsberg is 4 hours ahead of Porto Alegre. |
| Toowoomba | +13:0 hours | Toowoomba is 13 hours ahead of Porto Alegre. |
| Topeka | -3:0 hours | Topeka is 3 hours behind Porto Alegre. |
| Toronto | -2:0 hours | Toronto is 2 hours behind Porto Alegre. |
| Torrance | -5:0 hours | Torrance is 5 hours behind Porto Alegre. |
| Torreon | -3:0 hours | Torreon is 3 hours behind Porto Alegre. |
| Torshavn | +3:0 hours | Torshavn is 3 hours ahead of Porto Alegre. |
| Torun | +4:0 hours | Torun is 4 hours ahead of Porto Alegre. |
| Toulon | +4:0 hours | Toulon is 4 hours ahead of Porto Alegre. |
| Toulouse | +4:0 hours | Toulouse is 4 hours ahead of Porto Alegre. |
| Tours | +4:0 hours | Tours is 4 hours ahead of Porto Alegre. |
| Townsville | +13:0 hours | Townsville is 13 hours ahead of Porto Alegre. |
| Traralgon | * +14:0 hours | Traralgon is 14 hours ahead of Porto Alegre. |
| Trenton | -2:0 hours | Trenton is 2 hours behind Porto Alegre. |
| Trier | +4:0 hours | Trier is 4 hours ahead of Porto Alegre. |
| Trincomalee | +8:30 hours | Trincomalee is 8 hours, 30 minutes ahead of Porto Alegre. |
| Tripoli | +5:0 hours | Tripoli is 5 hours ahead of Porto Alegre. |
| Trois-Rivieres | -2:0 hours | Trois-Rivieres is 2 hours behind Porto Alegre. |
| Tromso | +4:0 hours | Tromso is 4 hours ahead of Porto Alegre. |
| Trondheim | +4:0 hours | Trondheim is 4 hours ahead of Porto Alegre. |
| Trujillo | -2:0 hours | Trujillo is 2 hours behind Porto Alegre. |
| Truro | +3:0 hours | Truro is 3 hours ahead of Porto Alegre. |
| Tsingtao | +11:0 hours | Tsingtao is 11 hours ahead of Porto Alegre. |
| Tsomog | +11:0 hours | Tsomog is 11 hours ahead of Porto Alegre. |
| Tubingen | +4:0 hours | Tubingen is 4 hours ahead of Porto Alegre. |
| Tucson | -4:0 hours | Tucson is 4 hours behind Porto Alegre. |
| Tucuman | same time | There is no time difference between Tucuman and Porto Alegre. |
| Tulsa | -3:0 hours | Tulsa is 3 hours behind Porto Alegre. |
| Tunis | +4:0 hours | Tunis is 4 hours ahead of Porto Alegre. |
| Turin | +4:0 hours | Turin is 4 hours ahead of Porto Alegre. |
| Turku | +5:0 hours | Turku is 5 hours ahead of Porto Alegre. |
| Tuxtla Gutierrez | -3:0 hours | Tuxtla Gutierrez is 3 hours behind Porto Alegre. |
| Tychy | +4:0 hours | Tychy is 4 hours ahead of Porto Alegre. |
| Uberaba | same time | There is no time difference between Uberaba and Porto Alegre. |
| Uberlandia | same time | There is no time difference between Uberlandia and Porto Alegre. |
| Ubud | +11:0 hours | Ubud is 11 hours ahead of Porto Alegre. |
| Udaipur | +8:30 hours | Udaipur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Udhampur | +8:30 hours | Udhampur is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ufa | +8:0 hours | Ufa is 8 hours ahead of Porto Alegre. |
| Ujjain | +8:30 hours | Ujjain is 8 hours, 30 minutes ahead of Porto Alegre. |
| Ulaanbaatar | +11:0 hours | Ulaanbaatar is 11 hours ahead of Porto Alegre. |
| Ulm | +4:0 hours | Ulm is 4 hours ahead of Porto Alegre. |
| Uluru | +12:30 hours | Uluru is 12 hours, 30 minutes ahead of Porto Alegre. |
| Umea | +4:0 hours | Umea is 4 hours ahead of Porto Alegre. |
| Umm al-Quwain | +7:0 hours | Umm al-Quwain is 7 hours ahead of Porto Alegre. |
| Unalaska | -6:0 hours | Unalaska is 6 hours behind Porto Alegre. |
| Unnao | +8:30 hours | Unnao is 8 hours, 30 minutes ahead of Porto Alegre. |
| Uppsala | +4:0 hours | Uppsala is 4 hours ahead of Porto Alegre. |
| Urmia | +6:30 hours | Urmia is 6 hours, 30 minutes ahead of Porto Alegre. |
| Uruguaiana | same time | There is no time difference between Uruguaiana and Porto Alegre. |
| Urumqi | +11:0 hours | Urumqi is 11 hours ahead of Porto Alegre. |
| Ushuaia | same time | There is no time difference between Ushuaia and Porto Alegre. |
| Utrecht | +4:0 hours | Utrecht is 4 hours ahead of Porto Alegre. |
| Utsunomiya | +12:0 hours | Utsunomiya is 12 hours ahead of Porto Alegre. |
| Vaasa | +5:0 hours | Vaasa is 5 hours ahead of Porto Alegre. |
| Vadodara | +8:30 hours | Vadodara is 8 hours, 30 minutes ahead of Porto Alegre. |
| Vaduz | +4:0 hours | Vaduz is 4 hours ahead of Porto Alegre. |
| Valdivia | * same time | There is no time difference between Valdivia and Porto Alegre. |
| Valencia | +4:0 hours | Valencia is 4 hours ahead of Porto Alegre. |
| Vallejo | -5:0 hours | Vallejo is 5 hours behind Porto Alegre. |
| Valletta | +4:0 hours | Valletta is 4 hours ahead of Porto Alegre. |
| Valparaiso | * same time | There is no time difference between Valparaiso and Porto Alegre. |
| Vancouver | -5:0 hours | Vancouver is 5 hours behind Porto Alegre. |
| Vantaa | +5:0 hours | Vantaa is 5 hours ahead of Porto Alegre. |
| Varanasi | +8:30 hours | Varanasi is 8 hours, 30 minutes ahead of Porto Alegre. |
| Varna | +5:0 hours | Varna is 5 hours ahead of Porto Alegre. |
| Vasco da Gama | +8:30 hours | Vasco da Gama is 8 hours, 30 minutes ahead of Porto Alegre. |
| Vasteras | +4:0 hours | Vasteras is 4 hours ahead of Porto Alegre. |
| Vatican City | +4:0 hours | Vatican City is 4 hours ahead of Porto Alegre. |
| Vaughan | -2:0 hours | Vaughan is 2 hours behind Porto Alegre. |
| Vaxjo | +4:0 hours | Vaxjo is 4 hours ahead of Porto Alegre. |
| Vedaranyam | +8:30 hours | Vedaranyam is 8 hours, 30 minutes ahead of Porto Alegre. |
| Vejle | +4:0 hours | Vejle is 4 hours ahead of Porto Alegre. |
| Velbert | +4:0 hours | Velbert is 4 hours ahead of Porto Alegre. |
| Vellore | +8:30 hours | Vellore is 8 hours, 30 minutes ahead of Porto Alegre. |
| Venice | +4:0 hours | Venice is 4 hours ahead of Porto Alegre. |
| Veracruz | -3:0 hours | Veracruz is 3 hours behind Porto Alegre. |
| Veraval | +8:30 hours | Veraval is 8 hours, 30 minutes ahead of Porto Alegre. |
| Vereeniging | +5:0 hours | Vereeniging is 5 hours ahead of Porto Alegre. |
| Verona | +4:0 hours | Verona is 4 hours ahead of Porto Alegre. |
| Vevay | -2:0 hours | Vevay is 2 hours behind Porto Alegre. |
| Victoria | -5:0 hours | Victoria is 5 hours behind Porto Alegre. |
| Victoria (Seychelles) | +7:0 hours | Victoria (Seychelles) is 7 hours ahead of Porto Alegre. |
| Victorville | -5:0 hours | Victorville is 5 hours behind Porto Alegre. |
| Vidisha | +8:30 hours | Vidisha is 8 hours, 30 minutes ahead of Porto Alegre. |
| Viedma | same time | There is no time difference between Viedma and Porto Alegre. |
| Vienna | +4:0 hours | Vienna is 4 hours ahead of Porto Alegre. |
| Vientiane | +10:0 hours | Vientiane is 10 hours ahead of Porto Alegre. |
| Vijayawada | +8:30 hours | Vijayawada is 8 hours, 30 minutes ahead of Porto Alegre. |
| Vila Nova de Gaia | +3:0 hours | Vila Nova de Gaia is 3 hours ahead of Porto Alegre. |
| Villach | +4:0 hours | Villach is 4 hours ahead of Porto Alegre. |
| Villahermosa | -3:0 hours | Villahermosa is 3 hours behind Porto Alegre. |
| Villeurbanne | +4:0 hours | Villeurbanne is 4 hours ahead of Porto Alegre. |
| Villingen-Schwenningen | +4:0 hours | Villingen-Schwenningen is 4 hours ahead of Porto Alegre. |
| Vilnius | +5:0 hours | Vilnius is 5 hours ahead of Porto Alegre. |
| Viluppuram | +8:30 hours | Viluppuram is 8 hours, 30 minutes ahead of Porto Alegre. |
| Vina del Mar | * same time | There is no time difference between Vina del Mar and Porto Alegre. |
| Vincennes | -2:0 hours | Vincennes is 2 hours behind Porto Alegre. |
| Virginia Beach | -2:0 hours | Virginia Beach is 2 hours behind Porto Alegre. |
| Virudhunagar | +8:30 hours | Virudhunagar is 8 hours, 30 minutes ahead of Porto Alegre. |
| Visakhapatnam | +8:30 hours | Visakhapatnam is 8 hours, 30 minutes ahead of Porto Alegre. |
| Visalia | -5:0 hours | Visalia is 5 hours behind Porto Alegre. |
| Viseu | +3:0 hours | Viseu is 3 hours ahead of Porto Alegre. |
| Vitoria | same time | There is no time difference between Vitoria and Porto Alegre. |
| Vitoria da Conquista | same time | There is no time difference between Vitoria da Conquista and Porto Alegre. |
| Vladivostok | +13:0 hours | Vladivostok is 13 hours ahead of Porto Alegre. |
| Volos | +5:0 hours | Volos is 5 hours ahead of Porto Alegre. |
| Volta Redonda | same time | There is no time difference between Volta Redonda and Porto Alegre. |
| Waco | -3:0 hours | Waco is 3 hours behind Porto Alegre. |
| Wailuku | -7:0 hours | Wailuku is 7 hours behind Porto Alegre. |
| Wakefield | +3:0 hours | Wakefield is 3 hours ahead of Porto Alegre. |
| Walbrzych | +4:0 hours | Walbrzych is 4 hours ahead of Porto Alegre. |
| Walsall | +3:0 hours | Walsall is 3 hours ahead of Porto Alegre. |
| Wanganui | * +16:0 hours | Wanganui is 16 hours ahead of Porto Alegre. |
| Warangal | +8:30 hours | Warangal is 8 hours, 30 minutes ahead of Porto Alegre. |
| Wardha | +8:30 hours | Wardha is 8 hours, 30 minutes ahead of Porto Alegre. |
| Warminster Township | -2:0 hours | Warminster Township is 2 hours behind Porto Alegre. |
| Warren | -2:0 hours | Warren is 2 hours behind Porto Alegre. |
| Warsaw | +4:0 hours | Warsaw is 4 hours ahead of Porto Alegre. |
| Washim | +8:30 hours | Washim is 8 hours, 30 minutes ahead of Porto Alegre. |
| Washington DC | -2:0 hours | Washington DC is 2 hours behind Porto Alegre. |
| Waterbury | -2:0 hours | Waterbury is 2 hours behind Porto Alegre. |
| Waterford | +3:0 hours | Waterford is 3 hours ahead of Porto Alegre. |
| Waterloo | -2:0 hours | Waterloo is 2 hours behind Porto Alegre. |
| Watford | +3:0 hours | Watford is 3 hours ahead of Porto Alegre. |
| Welland | -2:0 hours | Welland is 2 hours behind Porto Alegre. |
| Wellington | * +16:0 hours | Wellington is 16 hours ahead of Porto Alegre. |
| Wels | +4:0 hours | Wels is 4 hours ahead of Porto Alegre. |
| Weno | +13:0 hours | Weno is 13 hours ahead of Porto Alegre. |
| West Bromwich | +3:0 hours | West Bromwich is 3 hours ahead of Porto Alegre. |
| West Covina | -5:0 hours | West Covina is 5 hours behind Porto Alegre. |
| West Palm Beach | -2:0 hours | West Palm Beach is 2 hours behind Porto Alegre. |
| Whangarei | * +16:0 hours | Whangarei is 16 hours ahead of Porto Alegre. |
| Whistler | -5:0 hours | Whistler is 5 hours behind Porto Alegre. |
| Whitby | -2:0 hours | Whitby is 2 hours behind Porto Alegre. |
| Whitehorse | -5:0 hours | Whitehorse is 5 hours behind Porto Alegre. |
| Whitstable | +3:0 hours | Whitstable is 3 hours ahead of Porto Alegre. |
| Wichita | -3:0 hours | Wichita is 3 hours behind Porto Alegre. |
| Wichita Falls | -3:0 hours | Wichita Falls is 3 hours behind Porto Alegre. |
| Wiener Neustadt | +4:0 hours | Wiener Neustadt is 4 hours ahead of Porto Alegre. |
| Wiesbaden | +4:0 hours | Wiesbaden is 4 hours ahead of Porto Alegre. |
| Wilhelmshaven | +4:0 hours | Wilhelmshaven is 4 hours ahead of Porto Alegre. |
| Willemstad | -1:0 hour | Willemstad is 1 hour behind Porto Alegre. |
| Williams Lake | -5:0 hours | Williams Lake is 5 hours behind Porto Alegre. |
| Wilmington | -2:0 hours | Wilmington is 2 hours behind Porto Alegre. |
| Winamac | -2:0 hours | Winamac is 2 hours behind Porto Alegre. |
| Winder | -2:0 hours | Winder is 2 hours behind Porto Alegre. |
| Windhoek | +5:0 hours | Windhoek is 5 hours ahead of Porto Alegre. |
| Windsor | -2:0 hours | Windsor is 2 hours behind Porto Alegre. |
| Winnipeg | -3:0 hours | Winnipeg is 3 hours behind Porto Alegre. |
| Winston-Salem | -2:0 hours | Winston-Salem is 2 hours behind Porto Alegre. |
| Winterthur | +4:0 hours | Winterthur is 4 hours ahead of Porto Alegre. |
| Witten | +4:0 hours | Witten is 4 hours ahead of Porto Alegre. |
| Wittenberge | +4:0 hours | Wittenberge is 4 hours ahead of Porto Alegre. |
| Wloclawek | +4:0 hours | Wloclawek is 4 hours ahead of Porto Alegre. |
| Wodonga | * +14:0 hours | Wodonga is 14 hours ahead of Porto Alegre. |
| Wolfsberg | +4:0 hours | Wolfsberg is 4 hours ahead of Porto Alegre. |
| Wolfsburg | +4:0 hours | Wolfsburg is 4 hours ahead of Porto Alegre. |
| Wollongong | * +14:0 hours | Wollongong is 14 hours ahead of Porto Alegre. |
| Wolverhampton | +3:0 hours | Wolverhampton is 3 hours ahead of Porto Alegre. |
| Wood Buffalo | -4:0 hours | Wood Buffalo is 4 hours behind Porto Alegre. |
| Worcester | -2:0 hours | Worcester is 2 hours behind Porto Alegre. |
| Worms | +4:0 hours | Worms is 4 hours ahead of Porto Alegre. |
| Wroclaw | +4:0 hours | Wroclaw is 4 hours ahead of Porto Alegre. |
| Wuhan | +11:0 hours | Wuhan is 11 hours ahead of Porto Alegre. |
| Wuppertal | +4:0 hours | Wuppertal is 4 hours ahead of Porto Alegre. |
| Wurzburg | +4:0 hours | Wurzburg is 4 hours ahead of Porto Alegre. |
| Xining | +11:0 hours | Xining is 11 hours ahead of Porto Alegre. |
| Xinyang | +11:0 hours | Xinyang is 11 hours ahead of Porto Alegre. |
| Xuzhou | +11:0 hours | Xuzhou is 11 hours ahead of Porto Alegre. |
| Yakutat | -6:0 hours | Yakutat is 6 hours behind Porto Alegre. |
| Yamoussoukro | +3:0 hours | Yamoussoukro is 3 hours ahead of Porto Alegre. |
| Yangon | +9:30 hours | Yangon is 9 hours, 30 minutes ahead of Porto Alegre. |
| Yaounde | +4:0 hours | Yaounde is 4 hours ahead of Porto Alegre. |
| Yaren | +15:0 hours | Yaren is 15 hours ahead of Porto Alegre. |
| Yarmouth County | -1:0 hour | Yarmouth County is 1 hour behind Porto Alegre. |
| Yavatmal | +8:30 hours | Yavatmal is 8 hours, 30 minutes ahead of Porto Alegre. |
| Yazd | +6:30 hours | Yazd is 6 hours, 30 minutes ahead of Porto Alegre. |
| Yekaterinburg | +8:0 hours | Yekaterinburg is 8 hours ahead of Porto Alegre. |
| Yellowknife | -4:0 hours | Yellowknife is 4 hours behind Porto Alegre. |
| Yerevan | +7:0 hours | Yerevan is 7 hours ahead of Porto Alegre. |
| Yinchuan | +11:0 hours | Yinchuan is 11 hours ahead of Porto Alegre. |
| Yogyakarta | +10:0 hours | Yogyakarta is 10 hours ahead of Porto Alegre. |
| Yokohama | +12:0 hours | Yokohama is 12 hours ahead of Porto Alegre. |
| Yokosuka | +12:0 hours | Yokosuka is 12 hours ahead of Porto Alegre. |
| Yonkers | -2:0 hours | Yonkers is 2 hours behind Porto Alegre. |
| York | +3:0 hours | York is 3 hours ahead of Porto Alegre. |
| Yorkton | -3:0 hours | Yorkton is 3 hours behind Porto Alegre. |
| Youngstown | -2:0 hours | Youngstown is 2 hours behind Porto Alegre. |
| Yuma | -4:0 hours | Yuma is 4 hours behind Porto Alegre. |
| Yuzhno-Sakhalinsk | +14:0 hours | Yuzhno-Sakhalinsk is 14 hours ahead of Porto Alegre. |
| Zaandam | +4:0 hours | Zaandam is 4 hours ahead of Porto Alegre. |
| Zabrze | +4:0 hours | Zabrze is 4 hours ahead of Porto Alegre. |
| Zadar | +4:0 hours | Zadar is 4 hours ahead of Porto Alegre. |
| Zagreb | +4:0 hours | Zagreb is 4 hours ahead of Porto Alegre. |
| Zanzibar City | +6:0 hours | Zanzibar City is 6 hours ahead of Porto Alegre. |
| Zaragoza | +4:0 hours | Zaragoza is 4 hours ahead of Porto Alegre. |
| Zarate | same time | There is no time difference between Zarate and Porto Alegre. |
| Zhengzhou | +11:0 hours | Zhengzhou is 11 hours ahead of Porto Alegre. |
| Zibo | +11:0 hours | Zibo is 11 hours ahead of Porto Alegre. |
| Zielona Gora | +4:0 hours | Zielona Gora is 4 hours ahead of Porto Alegre. |
| Zoetermeer | +4:0 hours | Zoetermeer is 4 hours ahead of Porto Alegre. |
| Zomba | +5:0 hours | Zomba is 5 hours ahead of Porto Alegre. |
| Zurich | +4:0 hours | Zurich is 4 hours ahead of Porto Alegre. |
| Zwettl | +4:0 hours | Zwettl is 4 hours ahead of Porto Alegre. |
| Zwickau | +4:0 hours | Zwickau is 4 hours ahead of Porto Alegre. |
| Zwolle | +4:0 hours | Zwolle is 4 hours ahead of Porto Alegre. |