Singapore doesn't observe daylight saving time but Mazatlan does. DST in Mazatlan started on 07 April 2019 and will end on 27 October 2019. Once DST ends in Mazatlan the time difference between Mazatlan and Singapore will be 15:0 hours.
Time zone: MDT - Mountain Daylight Time (UTC/GMT -6)DST started on 07 April 2019DST will end on 27 October 2019Time zone difference / Flight distance
Time zone: SGT - Singapore Time (UTC/GMT +8)Time zone difference / Flight distance