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Time zonesLive · DST-aware

MST to BST Converter

See the current time in MST (Denver) and BST (London) side by side, the exact time difference right now, and convert any time between the two zones.

Quick presets

MST to BST Converter

MST
Denver
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BST
London
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Uses your browser's built-in, DST-aware time-zone data.

ToolFeather · Intl API

About converting MST to BST

Mountain Time (Denver) and British Time (London) (London) are in different time zones, so a meeting, call or stream that's convenient in one may be early or late in the other. The clocks above update live and account for daylight saving automatically, so the time difference you see is the real one for today — not a fixed number that goes stale twice a year.

To plan across the two, type a time into the MST box (or tap a quick preset) and read the BST equivalent, including a "next day" or "previous day" note when the conversion crosses midnight. For any other pair of zones or cities, use the full timezone converter.

MST vs BST: the time difference through the year

The gap between MST and BST changes during the year because they switch to and from daylight saving on different dates.

PeriodDifference
Oct 23, 2026 – Oct 24, 2026BST 7 h ahead of MST
Oct 25, 2026 – Oct 31, 2026BST 6 h ahead of MST
Nov 1, 2026 – Mar 13, 2027BST 7 h ahead of MST
Mar 14, 2027 – Mar 27, 2027BST 6 h ahead of MST
Mar 28, 2027 – Oct 23, 2027BST 7 h ahead of MST

Daylight-saving changes in the next year

ZoneDateOffsetChange
MSTNov 1, 2026UTC−6 → UTC−7Clocks go back 1 hour
MSTMar 14, 2027UTC−7 → UTC−6Clocks go forward 1 hour
MSTNov 7, 2027UTC−6 → UTC−7Clocks go back 1 hour
BSTOct 25, 2026UTC+1 → UTC+0Clocks go back 1 hour
BSTMar 28, 2027UTC+0 → UTC+1Clocks go forward 1 hour
BSTOct 31, 2027UTC+1 → UTC+0Clocks go back 1 hour

MST to BST conversion table

MSTBST (when 7 h ahead)BST (when 6 h ahead)
12:00 AM7:00 AM6:00 AM
1:00 AM8:00 AM7:00 AM
2:00 AM9:00 AM8:00 AM
3:00 AM10:00 AM9:00 AM
4:00 AM11:00 AM10:00 AM
5:00 AM12:00 PM11:00 AM
6:00 AM1:00 PM12:00 PM
7:00 AM2:00 PM1:00 PM
8:00 AM3:00 PM2:00 PM
9:00 AM4:00 PM3:00 PM
10:00 AM5:00 PM4:00 PM
11:00 AM6:00 PM5:00 PM
12:00 PM7:00 PM6:00 PM
1:00 PM8:00 PM7:00 PM
2:00 PM9:00 PM8:00 PM
3:00 PM10:00 PM9:00 PM
4:00 PM11:00 PM10:00 PM
5:00 PM12:00 AM (next day)11:00 PM
6:00 PM1:00 AM (next day)12:00 AM (next day)
7:00 PM2:00 AM (next day)1:00 AM (next day)
8:00 PM3:00 AM (next day)2:00 AM (next day)
9:00 PM4:00 AM (next day)3:00 AM (next day)
10:00 PM5:00 AM (next day)4:00 AM (next day)
11:00 PM6:00 AM (next day)5:00 AM (next day)

Best time to meet

The two zones

MST · Mountain Time

Mountain Time is UTC−7 in winter (MST) and UTC−6 in summer (MDT) for Denver, Salt Lake City and Calgary. Most of Arizona stays on MST (UTC−7) all year.

BST · British Time (London)

UK time is GMT (UTC+0) in winter and British Summer Time (BST, UTC+1) from the last Sunday in March to the last Sunday in October. Ireland and Portugal follow the same switch dates.

Frequently asked questions

6 answers
What is the time difference between MST and BST?
It's shown live at the top of this page (and it can change with daylight saving). The converter uses the current, DST-aware difference between Mountain Time and British Time (London), so the time you see is always right for right now.
How do I convert MST to BST?
Enter a time in the MST box and the equivalent BST time appears instantly, adjusted for the current offset between the two zones — including a note if it lands on the previous or next day.
Is this MST to BST converter accurate with daylight saving?
Yes. It uses your browser's built-in time-zone database (the IANA zones behind Denver and London), which tracks daylight-saving changes automatically, so the current times and difference are correct.
What time is it in London right now?
The live clock above shows the current time in London (BST), updating every second, alongside MST.
Does the MST to BST time difference change?
Yes. Over the next 12 months it is 7 h ahead or 6 h ahead, depending on the date — see the table of periods on this page.
What is a good meeting time for MST and BST?
Office hours overlap from 9:00 AM to 10:00 AM MST (4:00 PM to 5:00 PM BST).