MST vs PST
Mountain Time (US & Canada) (MST/MDT) is UTC−7 in winter and UTC−6 in summer. Pacific Time (US & Canada) (PST/PDT) is UTC−8 in winter and UTC−7 in summer.
The difference is a constant 1 hour behind — both zones switch to daylight saving on the same dates.
MST to PST conversion table
Applies all year:
| MST/MDT | PST/PDT |
|---|---|
| 12:00 AM | 11:00 PM (−1 day) |
| 6:00 AM | 5:00 AM |
| 8:00 AM | 7:00 AM |
| 9:00 AM | 8:00 AM |
| 10:00 AM | 9:00 AM |
| 12:00 PM | 11:00 AM |
| 2:00 PM | 1:00 PM |
| 3:00 PM | 2:00 PM |
| 5:00 PM | 4:00 PM |
| 6:00 PM | 5:00 PM |
| 8:00 PM | 7:00 PM |
| 10:00 PM | 9:00 PM |
Scheduling between MST and PST
With only 1 hour between them, normal working hours overlap most of the day — a call at 10 AM in Mountain Time (US & Canada) is 9:00 AM in Pacific Time (US & Canada). Always write the city alongside the abbreviation in invites — several abbreviations (CST, IST, AST) are used by more than one region.
Related conversions
PST to EST · EST to PST · MST to EST · EST to MST · PST to CST · CST to PST · PST to MST · HST to PST · PST to HST · AKST to PST · all zones