Time zone converter

MST to UTC

On Oct 23, 2026, Coordinated Universal Time is 6 hours ahead of Mountain Time: 9:00 AM MDT is 3:00 PM UTC. The gap changes during the year because of daylight saving time; the dates are below.

Mountain Time
--:--
Current time in Mountain Time
Coordinated Universal Time
--:--
Current time in Coordinated Universal Time
Pick a date and time to convert.

UTC vs MST over the next 12 months

PeriodUTC isExample
Oct 23, 2026 to Nov 1, 20266 hours ahead9:00 AM MDT = 3:00 PM UTC
Nov 1, 2026 to Mar 14, 20277 hours ahead9:00 AM MST = 4:00 PM UTC
Mar 14, 2027 onwards6 hours ahead9:00 AM MDT = 3:00 PM UTC

MST to UTC conversion table

Every hour of a weekday around Oct 23, 2026, in both zones.

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

Best time for a meeting

Normal 9-to-5 working hours overlap for 2 hours on a weekday: 9:00 AM–11:00 AM MDT, which is 3:00 PM–5:00 PM UTC.

Comparing more than two places? The meeting planner lines up working hours for up to six cities.

Daylight saving time

Mountain Time (MST/MDT)

  • Nov 1, 2026: clocks go back 1 hour at 2:00 AM (UTC−6 → UTC−7)
  • Mar 14, 2027: clocks go forward 1 hour at 2:00 AM (UTC−7 → UTC−6)

Where these clocks are used

  • Mountain Time (MST/MDT): Denver, Salt Lake City, Calgary. IANA zone America/Denver.
  • Coordinated Universal Time (UTC): servers, aviation and logs worldwide; the same clock as GMT. IANA zone Etc/UTC.

Questions

What time is it in UTC when it is 9 AM MST?

On Oct 23, 2026, 9:00 AM MDT is 3:00 PM UTC. On other dates the answer can shift by an hour because of daylight saving time; the table of periods on this page gives each one.

How many hours ahead of MST is UTC?

It depends on the date. Oct 23, 2026 to Nov 1, 2026: UTC is 6 hours ahead. Nov 1, 2026 to Mar 14, 2027: UTC is 7 hours ahead. Mar 14, 2027 onwards: UTC is 6 hours ahead.

Do MST and UTC observe daylight saving time?

Mountain Time switches to MDT (UTC−6) in summer and back to MST (UTC−7) in winter. Coordinated Universal Time stays on UTC±0 all year.

What is the best time for a meeting between MST and UTC?

Normal 9-to-5 working hours overlap for 2 hours on a weekday: 9:00 AM–11:00 AM MDT, which is 3:00 PM–5:00 PM UTC.

Scheduling across time zones? Share one Caly booking link and every guest sees your free times in their own zone. Try Caly free

Related conversions

Computed from the IANA time zone database on Oct 23, 2026. Live clocks and the converter use your browser's copy of the same data.