MST to PST Converter

Mountain Standard Time → Pacific Standard Time · MST is 1 hour ahead of PST

MST
—
PST
—

MST and PST are the same time

MST to PST Conversion Table

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

Green rows = business hours overlap (9:00 AM – 6:00 PM MST)

Major MST Cities
  • Denver, CO
  • Salt Lake City, UT
  • Albuquerque, NM
  • Boise, ID
  • El Paso, TX
  • Tucson, AZ
Major PST Cities
  • Los Angeles, CA
  • San Francisco, CA
  • Seattle, WA
  • Portland, OR
  • Las Vegas, NV
  • San Diego, CA
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MST vs PST — What You Need to Know

MST (Mountain Standard Time) is UTC-7, covering Colorado, Utah, Montana, Wyoming, New Mexico, and most of Idaho. During DST it becomes MDT (UTC-6).

PST (Pacific Standard Time) is UTC-8, covering California, Washington, Oregon, and Nevada. During DST it becomes PDT (UTC-7).

The 1-hour gap is constant year-round. A 9:00 AM meeting in Seattle is 10:00 AM in Denver — easy to coordinate across the Mountain and Pacific zones.

Frequently Asked Questions

How many hours is MST ahead of PST?

MST (Mountain Standard Time, UTC-7) is 1 hour ahead of PST (Pacific Standard Time, UTC-8). When it is 9:00 AM PST in Los Angeles, it is 10:00 AM MST in Denver. Both zones observe DST on the same dates, so the 1-hour difference is constant year-round.

When it is 9 AM MST, what time is it PST?

When it is 9:00 AM MST, it is 8:00 AM PST. MST is always 1 hour ahead of PST.

What is the time difference between Denver and Los Angeles?

Denver (Mountain Time) is 1 hour ahead of Los Angeles (Pacific Time) year-round. Both cities observe Daylight Saving Time on the same schedule (MST→MDT and PST→PDT), keeping the gap at exactly 1 hour.

Does Arizona affect the MST to PST difference?

Arizona (except the Navajo Nation) does not observe DST. In summer, when the rest of the Mountain zone shifts to MDT (UTC-6), Arizona stays at UTC-7. This temporarily makes Arizona the same time as PDT (UTC-7) on the West Coast.