Time Difference Between Pacific Time and Mountain Time
As of 31 August 2026, Mountain Time is 1 hour ahead of Pacific Time. This difference is fixed: neither zone shifts its clocks against the other, so it holds all year.
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Pacific Time, United States
15:34
Mon, Aug 31, 2026
UTC-7 · PDT · America/Los_Angeles
Mountain Time, United States
+1h16:34
Mon, Aug 31, 2026
UTC-6 · MDT · America/Denver
Mountain Time is 1 hour ahead of Pacific Time.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| Pacific Time | Monday, August 31, 2026 | PDTAmerica/Los_Angeles | UTC-7 | Active now |
| Mountain Time | Monday, August 31, 2026 | MDTAmerica/Denver | UTC-6 | Active now |
Pacific Time: Covers the US West Coast, from Los Angeles to Seattle to San Francisco. Switches between PST (UTC-8) and PDT (UTC-7) with daylight saving.
Mountain Time: Covers Denver and most of the Rocky Mountain states. Switches between MST (UTC-7) and MDT (UTC-6) with daylight saving — unlike Arizona, which stays on MST year-round.
Hour by hour: Pacific Time to Mountain Time
Every hour of today in Pacific Time and what it is in Mountain Time. Highlighted rows fall inside Mountain Time working hours (09:00–18:00).
| Pacific Time | Mountain Time |
|---|---|
| 00:00 | 01:00 |
| 01:00 | 02:00 |
| 02:00 | 03:00 |
| 03:00 | 04:00 |
| 04:00 | 05:00 |
| 05:00 | 06:00 |
| 06:00 | 07:00 |
| 07:00 | 08:00 |
| 08:00 | 09:00 |
| 09:00 | 10:00 |
| 10:00 | 11:00 |
| 11:00 | 12:00 |
| Pacific Time | Mountain Time |
|---|---|
| 12:00 | 13:00 |
| 13:00 | 14:00 |
| 14:00 | 15:00 |
| 15:00 | 16:00 |
| 16:00 | 17:00 |
| 17:00 | 18:00 |
| 18:00 | 19:00 |
| 19:00 | 20:00 |
| 20:00 | 21:00 |
| 21:00 | 22:00 |
| 22:00 | 23:00 |
| 23:00 | 00:00next day |
Best time to call or meet
Overlapping working hours
09:00–17:00 in Pacific Time (10:00–18:00 in Mountain Time)
Both places are inside 09:00–18:00 for 8 hours a day. Anything in this window works without asking anyone to stay late.
Reasonable calling hours
08:00–20:00 in Pacific Time (09:00–21:00 in Mountain Time)
Both people are awake and available between 08:00 and 21:00 local time during this window.
When this difference changes
Mountain Time puts its clocks back on Sunday, November 1, 2026
The local offset moves from UTC-6 to UTC-7. After that date, Mountain Time is on the same time as Pacific Time — instead of 1 hour ahead, as it is today.
Pacific Time puts its clocks back on Sunday, November 1, 2026
The local offset moves from UTC-7 to UTC-8. The gap between Pacific Time and Mountain Time stays at 1 hour because both places change at the same time.
Planning something with more than two places?
Adding a third city usually kills the obvious answer. The Meeting Time Finder takes up to five cities at once and shows only the hours that work for everybody.
Pacific Time and Mountain Time: common questions
What is the time difference between Pacific Time and Mountain Time?
Mountain Time is 1 hour ahead of Pacific Time, and this does not change during the year because the difference between these two zones is fixed.
When it is 9:00 AM in Pacific Time, what time is it in Mountain Time?
It is 10:00 AM in Mountain Time, United States. Use the time field in the calculator above to check any other hour.
Is Mountain Time ahead of or behind Pacific Time?
Mountain Time is ahead of Pacific Time by 1 hour at the moment. In practical terms, the working day in Mountain Time starts and ends earlier in Pacific Time terms.
Do Pacific Time and Mountain Time observe daylight saving time?
Both Pacific Time and Mountain Time change their clocks, but not on the same dates. That is why the gap is not fixed: across the year, Mountain Time ranges from 1 hour ahead to 1 hour ahead relative to Pacific Time.
What is the best time to call Mountain Time from Pacific Time?
Working hours overlap between 09:00 and 17:00 Pacific Time time, which is 10:00 to 18:00 in Mountain Time. Calls inside that window reach both sides during the normal working day.
Related comparisons
Local dates shown for Pacific Time, United States (UTC-7) and Mountain Time, United States (UTC-6) were generated on Monday, August 31, 2026 UTC and refresh in your browser.