MST vs UTC
Mountain Time (US & Canada) (MST/MDT) is UTC−7 in winter and UTC−6 in summer. Coordinated Universal Time (UTC) is UTC+0 year-round.
Because Mountain Time (US & Canada) observes daylight saving and the other zone does not, the gap changes during the year: 7 hours ahead in the northern winter and 6 hours ahead in summer, with a few weeks in spring and autumn where it's an hour different again. The converter uses the exact rules for the date you choose.
MST to UTC conversion table
Summer (daylight saving) times, mid-July:
| MST/MDT | UTC |
|---|---|
| 12:00 AM | 6:00 AM |
| 6:00 AM | 12:00 PM |
| 8:00 AM | 2:00 PM |
| 9:00 AM | 3:00 PM |
| 10:00 AM | 4:00 PM |
| 12:00 PM | 6:00 PM |
| 2:00 PM | 8:00 PM |
| 3:00 PM | 9:00 PM |
| 5:00 PM | 11:00 PM |
| 6:00 PM | 12:00 AM (+1 day) |
| 8:00 PM | 2:00 AM (+1 day) |
| 10:00 PM | 4:00 AM (+1 day) |
Winter (standard) times, mid-January:
| MST | UTC |
|---|---|
| 12:00 AM | 7:00 AM |
| 6:00 AM | 1:00 PM |
| 8:00 AM | 3:00 PM |
| 9:00 AM | 4:00 PM |
| 10:00 AM | 5:00 PM |
| 12:00 PM | 7:00 PM |
| 2:00 PM | 9:00 PM |
| 3:00 PM | 10:00 PM |
| 5:00 PM | 12:00 AM (+1 day) |
| 6:00 PM | 1:00 AM (+1 day) |
| 8:00 PM | 3:00 AM (+1 day) |
| 10:00 PM | 5:00 AM (+1 day) |
Scheduling between MST and UTC
The working-day overlap is a few hours: morning in the zone that's behind matches afternoon in the zone that's ahead. For example, 9 AM MST is 3:00 PM UTC. Always write the city alongside the abbreviation in invites — several abbreviations (CST, IST, AST) are used by more than one region.
Related conversions
MST to EST · EST to MST · PST to MST · MST to PST · UTC to EST · EST to UTC · UTC to CST · CST to UTC · UTC to MST · UTC to PST · all zones