PST to MST: PST is 1 hour behind MST
Pacific Time is 1 hour behind Mountain Time, on every day of the year. It is 12:37 pm PDT in Pacific and 1:37 pm MDT in Mountain.
Convert a specific time from PST to MST
Pick any time and date to convert it both ways. The conversion runs in your browser against the real zone rules, so a date inside a daylight saving period gets that period's offset rather than today's.
What is the time difference between PST and MST?
Mountain Time is 1 hour ahead of Pacific Time. To go from PST to MST you add 1 hour. That gap holds on all 365 days of 2026: both zones move their clocks, but on the same dates and in the same direction, so the distance between them never changes.
PST to MST conversion table
Every hour of Wednesday, September 23, 2026 in Pacific, with the matching reading in Mountain. 1 of the 24 hours land on a different calendar date in Mountain, which is the part people get wrong when they schedule across this pair.
| PST | PST 24h | MST | MST 24h | Date |
|---|---|---|---|---|
| 12:00 am | 00:00 | 1:00 am | 01:00 | same day |
| 1:00 am | 01:00 | 2:00 am | 02:00 | same day |
| 2:00 am | 02:00 | 3:00 am | 03:00 | same day |
| 3:00 am | 03:00 | 4:00 am | 04:00 | same day |
| 4:00 am | 04:00 | 5:00 am | 05:00 | same day |
| 5:00 am | 05:00 | 6:00 am | 06:00 | same day |
| 6:00 am | 06:00 | 7:00 am | 07:00 | same day |
| 7:00 am | 07:00 | 8:00 am | 08:00 | same day |
| 8:00 am | 08:00 | 9:00 am | 09:00 | same day |
| 9:00 am | 09:00 | 10:00 am | 10:00 | same day |
| 10:00 am | 10:00 | 11:00 am | 11:00 | same day |
| 11:00 am | 11:00 | 12:00 pm | 12:00 | same day |
| 12:00 pm | 12:00 | 1:00 pm | 13:00 | same day |
| 1:00 pm | 13:00 | 2:00 pm | 14:00 | same day |
| 2:00 pm | 14:00 | 3:00 pm | 15:00 | same day |
| 3:00 pm | 15:00 | 4:00 pm | 16:00 | same day |
| 4:00 pm | 16:00 | 5:00 pm | 17:00 | same day |
| 5:00 pm | 17:00 | 6:00 pm | 18:00 | same day |
| 6:00 pm | 18:00 | 7:00 pm | 19:00 | same day |
| 7:00 pm | 19:00 | 8:00 pm | 20:00 | same day |
| 8:00 pm | 20:00 | 9:00 pm | 21:00 | same day |
| 9:00 pm | 21:00 | 10:00 pm | 22:00 | same day |
| 10:00 pm | 22:00 | 11:00 pm | 23:00 | same day |
| 11:00 pm | 23:00 | 12:00 am | 00:00 | the next day |
What are the best hours to schedule a call between PST and MST?
7 hours of the standard 9:00 am to 5:00 pm working day line up in both zones, from 9:00 am PST to 4:00 pm PST. In Mountain that window reads 10:00 am to 5:00 pm. Outside it, one side is either not yet at their desk or already gone.
| PST | MST | Working hours | Note |
|---|---|---|---|
| 9:00 am | 10:00 am | both sides | mid morning in Pacific, mid morning in Mountain |
| 10:00 am | 11:00 am | both sides | mid morning in Pacific, mid morning in Mountain |
| 11:00 am | 12:00 pm | both sides | mid morning in Pacific, noon in Mountain |
| 12:00 pm | 1:00 pm | both sides | noon in Pacific, afternoon in Mountain |
| 1:00 pm | 2:00 pm | both sides | afternoon in Pacific, afternoon in Mountain |
| 2:00 pm | 3:00 pm | both sides | afternoon in Pacific, afternoon in Mountain |
| 3:00 pm | 4:00 pm | both sides | afternoon in Pacific, afternoon in Mountain |
Does daylight saving change PST to MST?
Pacific Time is currently on PDT and changes next on Sunday, November 1, 2026, when the clock falls back from 1:59 am to 1:00 am and the offset moves from UTC-7 to UTC-8.
Mountain Time is currently on MDT and changes next on Sunday, November 1, 2026, when the clock falls back from 1:59 am to 1:00 am and the offset moves from UTC-6 to UTC-7.
Is PST ahead of or behind MST?
PST is behind MST by 1 hour: when it is 12:00 pm in Pacific, it is 1:00 pm in Mountain. One wrinkle worth knowing: PST and PDT are two names for the same zone, not two zones. Pacific Time reads PST in winter and PDT in summer. When somebody types "pst to mst" they nearly always mean the zone rather than the literal winter offset, so this page resolves PST to America/Los_Angeles and MST to America/Denver and applies whichever offset is genuinely in force on the day.
Pacific Time covers Los Angeles, San Francisco, Seattle and Vancouver. Mountain Time covers Denver, Salt Lake City, Albuquerque and Calgary. The identifiers behind them are America/Los_Angeles and America/Denver, which is what any calendar or scheduling system should be storing rather than a fixed number of hours.
Questions
- What is PST in MST?
- PST is 1 hour behind MST. 9:00 am PST is 10:00 am MST.
- How many hours ahead is MST of PST?
- MST is 1 hour ahead of PST.
- What time is it in Mountain right now?
- 1:37 pm MDT on Wednesday, September 23, 2026.
- When can Pacific and Mountain meet during working hours?
- Between 9:00 am and 4:00 pm PST, which is 10:00 am to 5:00 pm MST.
- Does this account for daylight saving?
- Yes. Every reading is computed from the IANA database for the actual date, so PDT and MDT are the abbreviations genuinely in force today rather than a fixed assumption.
PST to MST by the hour
Other conversions
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