World Timezones

MST to GMT Converter

Compare GMT to MST instead

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Offset

7 hours

Mountain Time (MST) is currently behind Greenwich Mean Time (GMT).

MST: UTC-6

GMT: UTC+1

Both zones are currently observing daylight saving time.

When to schedule

Business-hours overlap: 9 AM–11 AM in Mountain Time (4 PM–6 PM in Greenwich Mean Time).

Both teams are in working hours during this window on weekdays.

Suggested time: 10:00 AM Mountain Time (5:00 PM Greenwich Mean Time).

This window may shift by an hour during daylight saving time.

About these zones

Mountain Time is also known as MST, or MDT.

Greenwich Mean Time is also known as GMT, or BST.

Mountain Time and Greenwich Mean Time are approximately 4,700 miles apart.

Quick reference

Full 24-hour conversion table.

MSTGMTDay
12:00 am7:00 amSame day
1:00 am8:00 amSame day
2:00 am9:00 amSame day
3:00 am10:00 amSame day
4:00 am11:00 amSame day
5:00 am12:00 pmSame day
6:00 am1:00 pmSame day
7:00 am2:00 pmSame day
8:00 am3:00 pmSame day
9:00 am4:00 pmSame day
10:00 am5:00 pmSame day
11:00 am6:00 pmSame day
12:00 pm7:00 pmSame day
1:00 pm8:00 pmSame day
2:00 pm9:00 pmSame day
3:00 pm10:00 pmSame day
4:00 pm11:00 pmSame day
5:00 pm12:00 am+1 day
6:00 pm1:00 am+1 day
7:00 pm2:00 am+1 day
8:00 pm3:00 am+1 day
9:00 pm4:00 am+1 day
10:00 pm5:00 am+1 day
11:00 pm6:00 am+1 day

Daylight saving time

Both zones observe daylight saving time, but they transition on different dates.

Mountain Time: next transition on Sunday, November 1, 2026.

Greenwich Mean Time: next transition on Sunday, October 25, 2026.

For approximately 7 days between transitions, the offset between Mountain Time and Greenwich Mean Time differs from its typical value. Recurring meetings during this window will shift by one hour.

Daylight today

Mountain Time
Sunrise
5:37 AM
Sunset
8:19 PM
Day length
14h 41m
Greenwich Mean Time
Sunrise
4:55 AM
Sunset
9:02 PM
Day length
16h 8m

Daylight overlap: 8h 25m — 5:37 AM–2:02 PM in Mountain Time (12:37 PM–9:02 PM in Greenwich Mean Time). Both locations are in daylight during this window.

Cities in these zones

Cities in Mountain Time

Airports in these zones

Airports in Mountain Time

  • BJC
  • DEN
  • OGD
  • SLC

Airports in Greenwich Mean Time

  • LCY
  • LGW
  • LHR
  • LTN
  • STN
  • BHX
  • EMA
  • GLA
  • PIK
  • LBA

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