MST to GST Converter
GST is 11 hours ahead of MST. 9:00 AM MST = 8:00 PM GST.
GST is 11 hours ahead of MST at the moment. To convert MST to GST, add 11 hours to the MST time: 9:00 AM MST = 8:00 PM GST.
MST (Mountain Time) is used in Denver, Salt Lake City, Albuquerque, Calgary, Edmonton; Phoenix (Arizona) all year. GST (Gulf Time) is used in United Arab Emirates and Oman.
Most of Arizona uses MST all year and does not switch to MDT.
MST to GST time conversion table
MST to GST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| MST | GST |
|---|---|
| 12:00 AM | 11:00 AM |
| 1:00 AM | 12:00 PM |
| 2:00 AM | 1:00 PM |
| 3:00 AM | 2:00 PM |
| 4:00 AM | 3:00 PM |
| 5:00 AM | 4:00 PM |
| 6:00 AM | 5:00 PM |
| 7:00 AM | 6:00 PM |
| MST | GST |
|---|---|
| 8:00 AM | 7:00 PM |
| 9:00 AM | 8:00 PM |
| 10:00 AM | 9:00 PM |
| 11:00 AM | 10:00 PM |
| 12:00 PM | 11:00 PM |
| 1:00 PM | 12:00 AM+1 |
| 2:00 PM | 1:00 AM+1 |
| 3:00 PM | 2:00 AM+1 |
| MST | GST |
|---|---|
| 4:00 PM | 3:00 AM+1 |
| 5:00 PM | 4:00 AM+1 |
| 6:00 PM | 5:00 AM+1 |
| 7:00 PM | 6:00 AM+1 |
| 8:00 PM | 7:00 AM+1 |
| 9:00 PM | 8:00 AM+1 |
| 10:00 PM | 9:00 AM+1 |
| 11:00 PM | 10:00 AM+1 |
Conversion table from MST to GST for 7 Nov 2026. A tick marks hours that fall between 9 AM and 5 PM in both places. +1 means the next day in GST, −1 the previous day.
- ✓ marks 9 AM–5 PM in both places
- Greyed times are night in the destination (10 PM–6 AM)
How to convert MST to GST
Add 11 hours to the MST time to get GST.
Example: 9:00 AM MST = 8:00 PM GST.
Across midnight: 10:00 PM MST = 9:00 AM GST (next day). The date changes, so always check the day as well as the hour.
Time difference between MST and GST
The time difference between MST and GST 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:
- 31 Dec 2025 – 7 Mar 2026: GST is 11 hours ahead of MST.
- 8 Mar 2026 – 31 Oct 2026: GST is 10 hours ahead of MST.
- 1 Nov 2026 – 30 Dec 2026: GST is 11 hours ahead of MST.
MST and GST during daylight saving time
- 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).
- GST does not observe daylight saving time; it stays on UTC+4 all year.
Best time for a meeting between MST and GST
MST and GST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM MST, which is 6:00 PM GST.
MST to GST FAQ
What is the time difference between MST and GST?
Right now GST is 11 hours ahead of MST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM MST in GST?
9:00 AM MST is 8:00 PM GST.
What is 12 PM (noon) MST in GST?
12:00 PM MST is 11:00 PM GST.
Is GST ahead of or behind MST?
GST is 11 hours ahead of MST, so it is later in GST than in MST.
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.
Does GST change for daylight saving time?
No. GST stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between MST and GST?
MST and GST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM MST, which is 6:00 PM GST.
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 GST to MST
Convert MST to other time zones
Convert other time zones to GST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.