BST 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 BST to MST, subtract 7 hours from the BST time: 9:00 AM GMT = 2:00 AM MST.
BST (British Time) is used in United Kingdom from late March to late October. MST (Mountain Time) is used in Denver, Salt Lake City, Albuquerque, Calgary, Edmonton; Phoenix (Arizona) all year.
BST here means British Summer Time, not Bangladesh Standard Time. Most of Arizona uses MST all year and does not switch to MDT. 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.
BST to MST time conversion table
BST to MST on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| BST | 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 BST to MST
Subtract 7 hours from the BST 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 BST and MST
The time difference between BST 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 BST.
- 8 Mar 2026 – 28 Mar 2026: MST is 6 hours behind of BST.
- 29 Mar 2026 – 24 Oct 2026: MST is 7 hours behind of BST.
- 25 Oct 2026 – 31 Oct 2026: MST is 6 hours behind of BST.
- 1 Nov 2026 – 31 Dec 2026: MST is 7 hours behind of BST.
BST and MST during daylight saving time
- 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).
- 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 BST and MST
BST 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.
BST to MST FAQ
What is the time difference between BST and MST?
Right now MST is 7 hours behind GMT. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM BST in MST?
9:00 AM GMT is 2:00 AM MST.
What is 12 PM (noon) BST in MST?
12:00 PM GMT is 5:00 AM MST.
Is MST ahead of or behind BST?
MST is 7 hours behind GMT, so it is earlier in MST than in BST.
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.
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 BST and MST?
BST 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 BST
Convert BST to other time zones
Convert other time zones to MST
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.