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Convert PST to MST

Mountain Time (MST) is 1 hour ahead of Pacific Time (PST) all year. When it's 9:00 AM in Los Angeles, it's 10:00 AM in Denver. Ethical Tube's free time zone converter shows both clocks live and converts any time and date you enter, with daylight saving time handled automatically.

Mountain Time

Choose a date and time

PST
UTC−8, or UTC−7 in summer
MST
UTC−7, or UTC−6 in summer
Difference
1 hour
9:00 AM PST
10:00 AM MST
Price
Free
Works offline
Yes

Time chart

PST to MST time chart

Every hour of the day in Pacific Time, with the matching time in Mountain Time.

PSTMST
12:00 AM1:00 AM
1:00 AM2:00 AM
2:00 AM3:00 AM
3:00 AM4:00 AM
4:00 AM5:00 AM
5:00 AM6:00 AM
6:00 AM7:00 AM
7:00 AM8:00 AM
8:00 AM9:00 AM
9:00 AM10:00 AM
10:00 AM11:00 AM
11:00 AM12:00 PM
12:00 PM1:00 PM
1:00 PM2:00 PM
2:00 PM3:00 PM
3:00 PM4:00 PM
4:00 PM5:00 PM
5:00 PM6:00 PM
6:00 PM7:00 PM
7:00 PM8:00 PM
8:00 PM9:00 PM
9:00 PM10:00 PM
10:00 PM11:00 PM
11:00 PM12:00 AMnext day

Good to know

About PST and MST

  • Pacific Time is used in California, Washington, Oregon, Nevada, and British Columbia. Pacific Time switches to PDT for daylight saving time from the second Sunday in March to the first Sunday in November.
  • Mountain Time is used in Colorado, Utah, New Mexico, Montana, and Alberta (most of Arizona stays on MST all year). Mountain Time switches to MDT for daylight saving time from the second Sunday in March to the first Sunday in November.
  • Both zones change their clocks on the same dates, so the difference stays the same all year.
  • People often say PST all year, but strictly PST is the winter time and PDT is the summer time. This page covers both.

FAQ

Questions, answered

What time is it in MST when it's 9 AM PST?

It's 10:00 AM MST.

What's the time difference between PST and MST?

Mountain Time (MST) is 1 hour ahead of Pacific Time (PST) all year.

Does PST observe daylight saving time?

Pacific Time switches to PDT for daylight saving time from the second Sunday in March to the first Sunday in November.

Is this time zone converter free?

Yes. It's free and uses your browser's built-in time zone database, so it works offline and handles daylight saving time for any date.

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