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DateAlmanac

What is MST in BST?

British Time is 7 hours ahead

Mountain Time is on UTC−7:00 and British Time is on UTC+0:00 right now. The gap changes during the year — see below.

Convert a time

GMT — British Time

8:00 am

GMT, Sat

Time in Denver
1:29:12 AM
Time in London
8:29:12 AM
Difference
+7 h
Next clock change
March 14, 2027

When the difference changes

Mountain Time and British Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:

  1. Now – March 14, 2027British Time is 7 hours ahead
  2. March 14, 2027 – March 27, 2027British Time is 6 hours ahead
  3. March 27, 2027 – October 30, 2027British Time is 7 hours ahead
  4. October 30, 2027 – November 7, 2027British Time is 6 hours ahead
  5. November 7, 2027 – onwardsBritish Time is 7 hours ahead

Periods shorter than a day are not listed. Each zone changes at its own local time, so on a date when both move there are a few hours when the gap is briefly something else.

Daylight saving

Mountain Time

Sunday, March 14, 2027

Clocks go forward one hour — 2:00 am becomes 3:00 am local time, and the zone is on MDT after that.

British Time

Sunday, March 28, 2027

Clocks go forward one hour — 1:00 am becomes 2:00 am local time, and the zone is on BST after that.

MST to BST conversion table

Every hour of Saturday, November 7, 2026, converted from Mountain Time to British Time. 7 of the 24 hours fall on a different calendar day in London, which is marked.

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
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
4:00 pm MST
11:00 pm GMT
5:00 pm MST
12:00 am GMT+1 day
6:00 pm MST
1:00 am GMT+1 day
7:00 pm MST
2:00 am GMT+1 day
8:00 pm MST
3:00 am GMT+1 day
9:00 pm MST
4:00 am GMT+1 day
10:00 pm MST
5:00 am GMT+1 day
11:00 pm MST
6:00 am GMT+1 day

Scheduling between the two

Working hours overlap from 9:00 am to 11:00 am MST, which is 4:00 pm to 6:00 pm GMT. Anything inside that window falls in the normal working day at both ends.

A note on BST: it can also mean Bangladesh Standard Time (UTC+6). This page means British Summer Time.

Mountain Time (MST) is used in Salt Lake City, Albuquerque and Calgary. Arizona keeps MST all year and does not follow MDT.

British Time (GMT) is used in the whole United Kingdom. In winter the UK is on GMT; from late March to late October it is on BST, an hour ahead.

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