GMT to MST Time Converter

Greenwich Mean Time → Mountain Standard Time

GMT

UTC+0

Greenwich Mean Time

offset
-7h
MST is 7h behind

MST

UTC-7

Mountain Standard Time

Both GMT and MST observe DST — offset may shift ±1h during transitions

Greenwich Mean Time (GMT) is 7 hours behind Mountain Standard Time (MST). When it is noon in GMT, it is 6 AM in MST. This offset may change during Daylight Saving Time transitions.

Best Meeting Times — GMT & MST

Recommended windows where both GMT and MST participants are within working hours (8 AM–6 PM).

GMTMSTRatingDetail page
2 PM
8 AM
Best
3 PM
9 AM
Best
4 PM
10 AM
Best
5 PM
11 AM
Best
6 PM
12 PM
Best

Tip: When scheduling between GMT and MST, aim for the “Best” windows above. These times keep both parties within normal working hours, avoiding early-morning or late-evening fatigue. Note that both time zones observe Daylight Saving Time — the offset may shift ±1 hour around transition dates.

Frequently Asked Questions — GMT to MST

Greenwich Mean Time (GMT) is 7 hours behind Mountain Standard Time (MST). GMT is UTC+0 and MST is UTC-7. This offset may shift by ±1 hour during Daylight Saving Time transitions.