PST to MST Converter – Pacific Time to Mountain Time
12:00 PM PST = 1:00 PM MST
When it is noon Pacific Time (PST), it is 1:00 PM MST (Thu) in Mountain Time. The difference is +1 hours in January and +1 hours in July.
Step by step
- Find the time difference: MST is +1 hours relative to PST (January).
- Add or subtract that many hours from the PST 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 PST → 1:00 AM MST (Thu); 3:00 AM PST → 4:00 AM MST (Thu); 6:00 AM PST → 7:00 AM MST (Thu); 8:00 AM PST → 9:00 AM MST (Thu); 9:00 AM PST → 10:00 AM MST (Thu); 12:00 PM PST → 1:00 PM MST (Thu); 3:00 PM PST → 4:00 PM MST (Thu); 5:00 PM PST → 6:00 PM MST (Thu); 6:00 PM PST → 7:00 PM MST (Thu); 9:00 PM PST → 10:00 PM MST (Thu). During daylight saving time, PST becomes PDT and MST becomes MDT.
Details
- PST zone
- Pacific Time (America/Los_Angeles)
- MST zone
- Mountain Time (America/Denver)
- Difference in winter
- +1 hours
- Difference in summer
- +1 hours
- 9 AM PST is
- 10:00 AM MST (Thu)
- 5 PM PST is
- 6:00 PM MST (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 |
|---|---|
| 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) |
| PST to UTC | +8 hours (winter) / +7 hours (summer) |
Related conversions
Frequently asked questions
What time is it in MST when it is noon PST?
1:00 PM MST (Thu) in winter.
How many hours difference is PST to MST?
+1 hours in January and +1 hours in July.
What is 9 AM PST in MST?
10:00 AM MST (Thu) (winter).
Does PST to MST change with daylight saving?
No — the difference stays the same all year.