GMT to MST Converter
MST is 7 hours behind GMT. 9:00 AM GMT = 2:00 AM MST.
MST is 7 hours behind GMT at the moment. To convert GMT to MST, subtract 7 hours from the GMT time: 9:00 AM GMT = 2:00 AM MST.
GMT (GMT) is used in Same offset as UTC. The UK and Ireland use GMT in winter; Iceland, Ghana and Senegal all year. MST (Mountain Time) is used in Denver, Salt Lake City, Albuquerque, Calgary, Edmonton; Phoenix (Arizona) all year.
The UK is on GMT only in winter; in summer it uses BST (UTC+1). Most of Arizona uses MST all year and does not switch to MDT.
GMT to MST time conversion table
GMT to MST on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| GMT | MST | Day |
|---|---|---|
| 12:00 AM GMT | 5:00 PM MST | previous day |
| 1:00 AM GMT | 6:00 PM MST | previous day |
| 2:00 AM GMT | 7:00 PM MST | previous day |
| 3:00 AM GMT | 8:00 PM MST | previous day |
| 4:00 AM GMT | 9:00 PM MST | previous day |
| 5:00 AM GMT | 10:00 PM MST | previous day |
| 6:00 AM GMT | 11:00 PM MST | previous day |
| 7:00 AM GMT | 12:00 AM MST | night |
| 8:00 AM GMT | 1:00 AM MST | night |
| 9:00 AM GMT | 2:00 AM MST | night |
| 10:00 AM GMT | 3:00 AM MST | night |
| 11:00 AM GMT | 4:00 AM MST | night |
| 12:00 PM GMT | 5:00 AM MST | night |
| 1:00 PM GMT | 6:00 AM MST | — |
| 2:00 PM GMT | 7:00 AM MST | — |
| 3:00 PM GMT | 8:00 AM MST | — |
| 4:00 PM GMT | 9:00 AM MST | work hours |
| 5:00 PM GMT | 10:00 AM MST | — |
| 6:00 PM GMT | 11:00 AM MST | — |
| 7:00 PM GMT | 12:00 PM MST | — |
| 8:00 PM GMT | 1:00 PM MST | — |
| 9:00 PM GMT | 2:00 PM MST | — |
| 10:00 PM GMT | 3:00 PM MST | — |
| 11:00 PM GMT | 4:00 PM MST | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert GMT to MST
Subtract 7 hours from the GMT time to get MST.
Example: 9:00 AM GMT = 2:00 AM MST.
Across midnight: 1:00 AM GMT = 6:00 PM MST (previous day). The date changes, so always check the day as well as the hour.
Time difference between GMT and MST
The time difference between GMT and MST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 7 Mar 2026: MST is 7 hours behind of GMT.
- 8 Mar 2026 – 31 Oct 2026: MST is 6 hours behind of GMT.
- 1 Nov 2026 – 31 Dec 2026: MST is 7 hours behind of GMT.
GMT and MST during daylight saving time
- GMT does not observe daylight saving time; it stays on UTC+0 all year.
- MST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from MST (UTC−7) to MDT (UTC−6).
Best time for a meeting between GMT and MST
GMT and MST share 1 hour of the 9 AM–5 PM working day. Any time between 4:00 PM and 5:00 PM GMT lands between 9:00 AM and 10:00 AM MST, inside working hours for both.
GMT to MST FAQ
What is the time difference between GMT and MST?
Right now MST is 7 hours behind GMT. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM GMT in MST?
9:00 AM GMT is 2:00 AM MST.
What is 12 PM (noon) GMT in MST?
12:00 PM GMT is 5:00 AM MST.
Is MST ahead of or behind GMT?
MST is 7 hours behind GMT, so it is earlier in MST than in GMT.
Does GMT change for daylight saving time?
No. GMT stays on the same offset all year, so conversions never shift for daylight saving time.
Does MST change for daylight saving time?
Yes. MST next changes on 14 Mar 2027, when clocks go forward one hour from MST to MDT.
What is the best time for a meeting between GMT and MST?
GMT and MST share 1 hour of the 9 AM–5 PM working day. Any time between 4:00 PM and 5:00 PM GMT lands between 9:00 AM and 10:00 AM MST, inside working hours for both.
Is MT the same as MST?
MST is the winter (standard) name of Mountain Time (MT). From March to November the same clocks are called MDT. This converter always uses the one in force on the date you choose.
Related conversions
Convert MST to GMT
Convert GMT to other time zones
Convert other time zones to MST
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.