MST to EDT time difference is 3 hours

! MST is not in use now.
Currently MDT (Mountain Daylight Time) is observed in place of MST in most regions.
You may want to check MDT to EDT.

Mountain Standard Time is 7 hours behind UTC, whereas Eastern Daylight Time is 4 hours behind UTC. So the time difference between Mountain Standard Time and Eastern Daylight Time is 3 hours.

MST is 3 hours behind EDT.
MST - Mountain Standard Time
(3 hours behind EDT)
12:46 PM
Monday, June 05
Offset: UTC-7
EDT - Eastern Daylight Time
(3 hours ahead of MST)
3:46 PM
Monday, June 05
Offset: UTC-4
Convert Other Time Zones

Time Conversion Chart

12 AM3 AM
1 AM4 AM
2 AM5 AM
3 AM6 AM
4 AM7 AM
5 AM8 AM
6 AM9 AM
7 AM10 AM
8 AM11 AM
9 AM12 PM
10 AM1 PM
11 AM2 PM
12 PM3 PM
1 PM4 PM
2 PM5 PM
3 PM6 PM
4 PM7 PM
5 PM8 PM
6 PM9 PM
7 PM10 PM
8 PM11 PM
9 PM12 AM next day
10 PM1 AM next day
11 PM2 AM next day