MeetingTimePro

MST to PST converter

Mountain Time to Pacific Time. PST is 1 h behind of MST all year.

From

MST · Denver MDT · UTC−6

  • PST · Los AngelesPDT · UTC−7 · 1 h behind
    08:00Mon, Sep 28
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The gap between MST and PST

2026MST clocksPST clocksDifference
JanuaryMST UTC−7PST UTC−81 h behind
JulyMDT UTC−6PDT UTC−71 h behind

Neither clock changes relative to the other, so this gap holds all year.

Plan a meeting across more places

MST to PST time table

Every hour of the MST day and the matching PST time, for a mid-January and a mid-July date (they are identical, since the gap never changes).

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

About these two clocks

MST — Mountain Time. Used in Denver, Salt Lake City, Calgary. MST is the winter name; summer is MDT (UTC−6). Arizona stays on MST all year, so Phoenix differs from Denver in summer.

PST — Pacific Time. Used in Los Angeles, San Francisco, Seattle, Vancouver. PST is the winter name; from March to November the same clocks show PDT (UTC−7).

All figures on this page come from the IANA time zone database (the same data your phone and laptop use), evaluated for the date in question. Abbreviations are ambiguous — “IST” also means Irish or Israel Standard Time, and “CST” is China Standard Time in Asia — so this page uses America/Denver and America/Los_Angeles explicitly.

Questions people ask

How many hours ahead or behind is PST compared with MST?

PST is 1 h behind of MST all year, because the offset between the two clocks does not change.

What is 9 am MST in PST?

On a January date, 9:00 am MST is 8:00 AM PST. Use the converter above for any other date.

Which cities use MST?

Mountain Time (MST) is used in Denver, Salt Lake City, Calgary. MST is the winter name; summer is MDT (UTC−6). Arizona stays on MST all year, so Phoenix differs from Denver in summer.

Which cities use PST?

Pacific Time (PST) is used in Los Angeles, San Francisco, Seattle, Vancouver. PST is the winter name; from March to November the same clocks show PDT (UTC−7).

When is a good time for a MST–PST call?

Look for the hours where both columns in the table fall between about 8 am and 6 pm. If none exist, the meeting planner on our home page shows the least-bad options and lets you share a link that converts for every attendee.

Related conversions

EST to PSTUTC to PSTMST to ESTCST to PSTIST to PSTGMT to PSTCET to PSTAEST to PST