PST to MST Time Converter

Convert Pacific Standard Time to Mountain Standard Time - Quick & Accurate

Los Angeles (PST)
Denver (MST)
MST is 1 hour ahead of PST

Quick Time Conversion

Los Angeles
Pacific Standard Time
UTC-8 (PST) / UTC-7 (PDT)
Denver
Mountain Standard Time
UTC-7 (MST) / UTC-6 (MDT)

Current Time Right Now

Pacific (PST/PDT)
Mountain (MST/MDT)

Updates live every second

24-Hour Visual Comparison

PST (LA)
12am PST
1am PST
2am PST
3am PST
4am PST
5am PST
6am PST
7am PST
8am PST
9am PST
10am PST
11am PST
12pm PST
1pm PST
2pm PST
3pm PST
4pm PST
5pm PST
6pm PST
7pm PST
8pm PST
9pm PST
10pm PST
11pm PST
12a6a12p6p12a
MST (Denver)
1am MST
2am MST
3am MST
4am MST
5am MST
6am MST
7am MST
8am MST
9am MST
10am MST
11am MST
12pm MST
1pm MST
2pm MST
3pm MST
4pm MST
5pm MST
6pm MST
7pm MST
8pm MST
9pm MST
10pm MST
11pm MST
12am MST
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Business Hours (9AM-5PM)
Evening (5PM-9PM)
Night (9PM-6AM)

Hover over any hour to see corresponding time in both zones

Best Time for Meeting/Call

To schedule a meeting between PST and MST:

Best Window (PST)
8:00 AM - 5:00 PM
Which is (MST)
9:00 AM - 6:00 PM
Both parties in business hours
9-hour overlap window
Ideal for Western US teams

Pro Tip: Schedule calls between 9:00 AM - 4:00 PM PST for optimal overlap with MST business hours

Complete PST to MST Conversion Table

PST TimeMST TimeContext
12:00 AM01:00 AM
Midnight West Coast
01:00 AM02:00 AM
Late Night
02:00 AM03:00 AM
Late Night
03:00 AM04:00 AM
Late Night
04:00 AM05:00 AM
Late Night
05:00 AM06:00 AM
Late Night
06:00 AM07:00 AM
Early Morning PST
07:00 AM08:00 AM
Night Time
08:00 AM09:00 AM
Work Starts PST
09:00 AM10:00 AM
Meeting Window
10:00 AM11:00 AM
Meeting Window
11:00 AM12:00 PM
Meeting Window

Pacific Standard Time (PST)

UTC-8
UTC-7 during PDT
Major Cities:
  • • Los Angeles
  • • San Francisco
  • • Seattle
  • • San Diego
  • • Portland
Daylight Saving:

PDT (UTC-7) from March to November

IANA Identifier:

America/Los_Angeles

Mountain Standard Time (MST)

UTC-7
UTC-6 during MDT
Major Cities:
  • • Denver
  • • Phoenix
  • • Salt Lake City
  • • Albuquerque
  • • Boise
Daylight Saving:

MDT (UTC-6) from March to November (Arizona does not observe DST)

IANA Identifier:

America/Denver

Pacific Standard Time (PST) vs Mountain Standard Time (MST)

Pacific Standard Time (PST)Mountain Standard Time (MST)

Pacific Standard Time (PST) is 8 hours behind Coordinated Universal Time (UTC-8). During daylight saving time, the region observes Pacific Daylight Time (PDT), which is UTC-7.

Mountain Standard Time (MST) is 7 hours behind Coordinated Universal Time (UTC-7). During daylight saving time, the region observes Mountain Daylight Time (MDT), which is UTC-6. Note: Arizona stays on MST year-round.

Where Is It Used In The United States?

  • California: Los Angeles, San Francisco, San Diego, San Jose, Sacramento
  • Washington: Seattle, Spokane, Tacoma, Vancouver
  • Oregon: Portland, Eugene, Salem
  • Nevada: Most of the state (except West Wendover)
  • Colorado: Denver, Colorado Springs, Aurora
  • Arizona: Phoenix, Tucson (MST year-round, no DST)
  • Utah: Salt Lake City, Provo, West Valley City
  • New Mexico: Albuquerque, Las Cruces, Santa Fe
  • Montana: Billings, Missoula, Great Falls
  • Wyoming: Cheyenne, Casper, Laramie
  • Idaho: Boise, Meridian (southern portion)

Key Facts

  • UTC Offset: UTC-8 (PST) / UTC-7 (PDT)
  • Region: Westernmost region of North America
  • Known For: Major tech hubs (Silicon Valley, Seattle)
  • Largest Cities: Los Angeles (4M), San Diego (1.4M), San Jose (1M)
  • Daylight Saving: Begins 2nd Sunday in March, ends 1st Sunday in November
  • UTC Offset: UTC-7 (MST) / UTC-6 (MDT)
  • Region: Mountain states of Western US
  • Known For: Rocky Mountains, outdoor recreation
  • Largest Cities: Phoenix (1.7M), Denver (715K), Salt Lake City (200K)
  • Special Note: Arizona does not observe DST (except Navajo Nation)
  • Daylight Saving: Begins 2nd Sunday in March, ends 1st Sunday in November (most states)

Quick Reference

Time Difference: MST is 1 hour ahead of PST year-round
Consistency: This difference remains constant because both observe DST at the same dates (except Arizona)
Distance: Covers approximately 750 miles across the Western United States
UTC Offsets: PST = UTC-8, MST = UTC-7 | PDT = UTC-7, MDT = UTC-6 (during DST)
2025 DST: Starts March 9 at 2:00 AM, Ends November 2 at 2:00 AM

Frequently Asked Questions

MST (Mountain Standard Time) is 1 hour ahead of PST (Pacific Standard Time). This means when it's 8:00 AM in Los Angeles (PST), it's 9:00 AM in Denver (MST).

The best time to call from PST to MST is between 8:00 AM and 5:00 PM PST, which corresponds to 9:00 AM to 6:00 PM MST. This ensures both parties are within standard business hours.

No, the time difference remains constant at 1 hour because both PST and MST observe Daylight Saving Time at the same dates. PST becomes PDT (UTC-7) and MST becomes MDT (UTC-6). Note: Arizona stays on MST year-round.

PST cities include Los Angeles, San Francisco, and Seattle. MST cities include Denver, Phoenix, Salt Lake City, and Albuquerque.

In 2025, DST starts on March 9 at 2:00 AM and ends on November 2 at 2:00 AM. During DST, PST becomes PDT and MST becomes MDT. Arizona does not observe DST.

Related Time Converters

MST → PSTPST → ESTMST → ESTPST → CSTEST → GMTPST → ISTEST → JSTView All