UTC: Coordinated Universal Time
Coordinated Universal Time is UTC+0.
The world's reference time. Every other zone is defined as an offset from UTC, and it never changes for daylight saving time. Servers, aviation and international deadlines use it.
UTC to MST converter
UTC never changes for daylight saving time, but Mountain Time does, so the gap moves by an hour twice a year. The table below always shows the right one for your date.
Convert Coordinated Universal Time (UTC) to Mountain Standard Time (MST) for any date and time.
Mountain Time is 6 hours behind UTC from March to November, and 7 hours behind the rest of the year.
Right now UTC is UTC+0 and Mountain Time is on MST (UTC−7). Mountain Time switches to daylight saving time on 14 March 2027.
9:00 am to 5:00 pm UTC is 2:00 am to 10:00 am MST.
- 8:00 am UTC1:00 am MST
- 9:00 am UTC2:00 am MST
- 10:00 am UTC3:00 am MST
- 12:00 pm UTC5:00 am MST
- 3:00 pm UTC8:00 am MST
- 5:00 pm UTC10:00 am MST
Live: the current time
Coordinated Universal TimeReference
The world's reference time, UTC+0 all year
Wed, Nov 4
UTC UTC+0ReferenceOutside working hoursMountain Time
US & Canada; Arizona stays on MST
Tue, Nov 3Previous day
MST UTC−7−7h from Coordinated Universal TimeOutside working hours
Best time to meet 4:00 PM–5:00 PM in Coordinated Universal Time on Wed, Nov 4, when everyone is inside working hours.
Book a meeting in this windowWorking hours: 9:00 AM–5:00 PM, Monday to FridayEveryone at work
UTC to MST conversion table
Every hour of the day in UTC, converted to MST. Hatched cells are working hours (9:00 am to 5:00 pm); rows with the accent bar are working hours in both zones.
| UTC | MSTUntil 14 March 2027 | MDTFrom 14 March 2027 |
|---|---|---|
| 12:00 am UTC | 5:00 pm MST(day before) | 6:00 pm MDT(day before) |
| 1:00 am UTC | 6:00 pm MST(day before) | 7:00 pm MDT(day before) |
| 2:00 am UTC | 7:00 pm MST(day before) | 8:00 pm MDT(day before) |
| 3:00 am UTC | 8:00 pm MST(day before) | 9:00 pm MDT(day before) |
| 4:00 am UTC | 9:00 pm MST(day before) | 10:00 pm MDT(day before) |
| 5:00 am UTC | 10:00 pm MST(day before) | 11:00 pm MDT(day before) |
| 6:00 am UTC | 11:00 pm MST(day before) | 12:00 am MDT |
| 7:00 am UTC | 12:00 am MST | 1:00 am MDT |
| 8:00 am UTC | 1:00 am MST | 2:00 am MDT |
| 9:00 am UTC | 2:00 am MST | 3:00 am MDT |
| 10:00 am UTC | 3:00 am MST | 4:00 am MDT |
| 11:00 am UTC | 4:00 am MST | 5:00 am MDT |
| 12:00 pm UTC | 5:00 am MST | 6:00 am MDT |
| 1:00 pm UTC | 6:00 am MST | 7:00 am MDT |
| 2:00 pm UTC | 7:00 am MST | 8:00 am MDT |
| 3:00 pm UTC | 8:00 am MST | 9:00 am MDT |
| 4:00 pm UTC | 9:00 am MST | 10:00 am MDT |
| 5:00 pm UTC | 10:00 am MST | 11:00 am MDT |
| 6:00 pm UTC | 11:00 am MST | 12:00 pm MDT |
| 7:00 pm UTC | 12:00 pm MST | 1:00 pm MDT |
| 8:00 pm UTC | 1:00 pm MST | 2:00 pm MDT |
| 9:00 pm UTC | 2:00 pm MST | 3:00 pm MDT |
| 10:00 pm UTC | 3:00 pm MST | 4:00 pm MDT |
| 11:00 pm UTC | 4:00 pm MST | 5:00 pm MDT |
Best times to meet
Your working hours overlap for 1 hour, from 4:00 pm UTC (9:00 am MST) to 5:00 pm UTC (10:00 am MST). That's the best window for a meeting.
About these time zones
MST: Mountain Standard Time
Mountain Standard Time is UTC−7. MST is also used for Malaysia Standard Time (UTC+8). This page converts US Mountain Time.
Colorado, Utah, New Mexico, Wyoming, Montana and southern Idaho, plus Alberta in Canada. Most of Arizona stays on MST all year (the Navajo Nation follows daylight saving time). MT is the short form for the whole zone.
How the difference changes
Right now MST is 7 hours behind UTC. From 14 March 2027, when US clocks go forward, the difference becomes 6 hours.
Frequently asked questions
Ask a questionMountain Time is 6 hours behind UTC from March to November, and 7 hours behind the rest of the year. UTC is the reference time, and MST is UTC−7.
9:00 am UTC is 2:00 am MST.
Yes, because Mountain Time changes its clocks and UTC doesn't. Mountain Time is 6 hours behind UTC from March to November, and 7 hours behind the rest of the year.
Related conversions
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Time zone abbreviations
EST, PST, CET, IST and the rest: full names, current time, offsets, where they are used.