MST to BST Converter
GMT is 7 hours ahead of MST. 9:00 AM MST = 4:00 PM GMT.
GMT is 7 hours ahead of MST at the moment. To convert MST to BST, add 7 hours to the MST time: 9:00 AM MST = 4:00 PM GMT.
MST (Mountain Time) is used in Denver, Salt Lake City, Albuquerque, Calgary, Edmonton; Phoenix (Arizona) all year. BST (British Time) is used in United Kingdom from late March to late October.
Most of Arizona uses MST all year and does not switch to MDT. BST here means British Summer Time, not Bangladesh Standard Time. BST (British Summer Time) is not in force right now: United Kingdom from late March to late October is currently on GMT. This page uses whichever name applies on the date you pick, so the numbers below say GMT.
MST to BST time conversion table
MST to BST on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| MST | BST | Day |
|---|---|---|
| 12:00 AM MST | 7:00 AM GMT | — |
| 1:00 AM MST | 8:00 AM GMT | — |
| 2:00 AM MST | 9:00 AM GMT | — |
| 3:00 AM MST | 10:00 AM GMT | — |
| 4:00 AM MST | 11:00 AM GMT | — |
| 5:00 AM MST | 12:00 PM GMT | — |
| 6:00 AM MST | 1:00 PM GMT | — |
| 7:00 AM MST | 2:00 PM GMT | — |
| 8:00 AM MST | 3:00 PM GMT | — |
| 9:00 AM MST | 4:00 PM GMT | work hours |
| 10:00 AM MST | 5:00 PM GMT | — |
| 11:00 AM MST | 6:00 PM GMT | — |
| 12:00 PM MST | 7:00 PM GMT | — |
| 1:00 PM MST | 8:00 PM GMT | — |
| 2:00 PM MST | 9:00 PM GMT | — |
| 3:00 PM MST | 10:00 PM GMT | night |
| 4:00 PM MST | 11:00 PM GMT | night |
| 5:00 PM MST | 12:00 AM GMT | next day |
| 6:00 PM MST | 1:00 AM GMT | next day |
| 7:00 PM MST | 2:00 AM GMT | next day |
| 8:00 PM MST | 3:00 AM GMT | next day |
| 9:00 PM MST | 4:00 AM GMT | next day |
| 10:00 PM MST | 5:00 AM GMT | next day |
| 11:00 PM MST | 6:00 AM GMT | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert MST to BST
Add 7 hours to the MST time to get BST.
Example: 9:00 AM MST = 4:00 PM GMT.
Across midnight: 10:00 PM MST = 5:00 AM GMT (next day). The date changes, so always check the day as well as the hour.
Time difference between MST and BST
The time difference between MST and BST 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: BST is 7 hours ahead of MST.
- 8 Mar 2026 – 27 Mar 2026: BST is 6 hours ahead of MST.
- 28 Mar 2026 – 23 Oct 2026: BST is 7 hours ahead of MST.
- 24 Oct 2026 – 31 Oct 2026: BST is 6 hours ahead of MST.
- 1 Nov 2026 – 30 Dec 2026: BST is 7 hours ahead of MST.
MST and BST 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).
- BST next changes on 28 Mar 2027: clocks go forward one hour at 00:59 local time, from GMT (UTC+0) to BST (UTC+1).
Best time for a meeting between MST and BST
MST and BST share 1 hour of the 9 AM–5 PM working day. Any time between 9:00 AM and 10:00 AM MST lands between 4:00 PM and 5:00 PM GMT, inside working hours for both.
MST to BST FAQ
What is the time difference between MST and BST?
Right now GMT is 7 hours ahead of MST. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM MST in BST?
9:00 AM MST is 4:00 PM GMT.
What is 12 PM (noon) MST in BST?
12:00 PM MST is 7:00 PM GMT.
Is BST ahead of or behind MST?
GMT is 7 hours ahead of MST, so it is later in BST 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 BST change for daylight saving time?
Yes. BST next changes on 28 Mar 2027, when clocks go forward one hour from GMT to BST.
What is the best time for a meeting between MST and BST?
MST and BST share 1 hour of the 9 AM–5 PM working day. Any time between 9:00 AM and 10:00 AM MST lands between 4:00 PM and 5:00 PM GMT, 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 BST to MST
Convert MST to other time zones
Convert other time zones to BST
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.