MST to PST Converter – Mountain Time to Pacific Time
12:00 PM MST = 11:00 AM PST
When it is noon Mountain Time (MST), it is 11:00 AM PST (Thu) in Pacific Time. The difference is −1 hours in January and −1 hours in July.
Step by step
- Find the time difference: PST is −1 hours relative to MST (January).
- Add or subtract that many hours from the MST time.
- Check daylight saving: in July the difference is −1 hours.
- If the result passes midnight, the date changes too.
Hour by hour (January): 12:00 AM MST → 11:00 PM PST (Wed); 3:00 AM MST → 2:00 AM PST (Thu); 6:00 AM MST → 5:00 AM PST (Thu); 8:00 AM MST → 7:00 AM PST (Thu); 9:00 AM MST → 8:00 AM PST (Thu); 12:00 PM MST → 11:00 AM PST (Thu); 3:00 PM MST → 2:00 PM PST (Thu); 5:00 PM MST → 4:00 PM PST (Thu); 6:00 PM MST → 5:00 PM PST (Thu); 9:00 PM MST → 8:00 PM PST (Thu). During daylight saving time, MST becomes MDT and PST becomes PDT.
Details
- MST zone
- Mountain Time (America/Denver)
- PST zone
- Pacific Time (America/Los_Angeles)
- Difference in winter
- −1 hours
- Difference in summer
- −1 hours
- 9 AM MST is
- 8:00 AM PST (Thu)
- 5 PM MST is
- 4:00 PM PST (Thu)
How it works
Time zones are offsets from Coordinated Universal Time (UTC). Many people say “EST” or “PST” all year, but strictly EST and PST are standard time; during US daylight saving time (second Sunday in March to first Sunday in November) clocks use EDT and PDT. Countries such as Pakistan, India and Japan do not use daylight saving time, so their difference from US time changes twice a year. The converter above uses the official time zone database, so it is correct for any date.
Nearby values
| Conversion | Time difference |
|---|---|
| CST to PST | −2 hours (winter) / −2 hours (summer) |
| PST to CST | +2 hours (winter) / +2 hours (summer) |
| EST to MST | −2 hours (winter) / −2 hours (summer) |
| MST to EST | +2 hours (winter) / +2 hours (summer) |
| MST to PST | −1 hours (winter) / −1 hours (summer) |
| PST to MST | +1 hours (winter) / +1 hours (summer) |
| UTC to EST | −5 hours (winter) / −4 hours (summer) |
| EST to UTC | +5 hours (winter) / +4 hours (summer) |
| UTC to PST | −8 hours (winter) / −7 hours (summer) |
Related conversions
Frequently asked questions
What time is it in PST when it is noon MST?
11:00 AM PST (Thu) in winter.
How many hours difference is MST to PST?
−1 hours in January and −1 hours in July.
What is 9 AM MST in PST?
8:00 AM PST (Thu) (winter).
Does MST to PST change with daylight saving?
No — the difference stays the same all year.