PST to MST Time — Convert Pacific Standard Time (US) to Mountain Standard Time (US)

MST is currently 1 hour ahead of PST.

On Clockjumper, PST refers to Pacific Standard Time in the United States (UTC−8). The US West Coast observes PST in winter and switches to PDT (UTC−7) during daylight saving time.

MST is Mountain Standard Time (UTC−7). Most of the US Mountain zone switches to MDT (UTC−6) in summer, but Arizona (except the Navajo Nation) stays on MST year-round.

The PST → MST offset stays constant across the year — neither zone shifts for daylight saving in a way that changes this gap.

Is MST ahead of or behind PST right now?

MST is currently 1 hour ahead of PST.

What is the current PST to MST time difference?

Right now the gap is 1 hour — MST is 1 hour ahead of PST.

Does the PST → MST offset change during the year?

No. Neither Pacific Standard Time (US) nor Mountain Standard Time (US) shifts for daylight saving in a way that changes this offset — the gap is the same all year.

Does PST observe daylight saving time?

PST is itself the standard-time form. Pacific Standard Time (US) is in force at UTC-8 through the winter months; outside that window the same zone is on PDT (UTC-7).

Does MST observe daylight saving time?

MST is itself the standard-time form. Mountain Standard Time (US) is in force at UTC-7 through the winter months; outside that window the same zone is on MDT (UTC-6).

What time is 3 AM PST in MST?

3:00 AM PST is 4:00 AM MST.

What time is 8 AM PST in MST?

8:00 AM PST is 9:00 AM MST.

What time is 9 AM PST in MST?

9:00 AM PST is 10:00 AM MST.

What time is 10 AM PST in MST?

10:00 AM PST is 11:00 AM MST.

What time is 11 AM PST in MST?

11:00 AM PST is 12:00 PM MST.

What time is 12 PM (noon) PST in MST?

12:00 PM PST is 1:00 PM MST.

What time is 2 PM PST in MST?

2:00 PM PST is 3:00 PM MST.

What time is 3 PM PST in MST?

3:00 PM PST is 4:00 PM MST.

What time is 4 PM PST in MST?

4:00 PM PST is 5:00 PM MST.

What time is 5 PM PST in MST?

5:00 PM PST is 6:00 PM MST.

What time is 9 PM PST in MST?

9:00 PM PST is 10:00 PM MST.

What time is 10 PM PST in MST?

10:00 PM PST is 11:00 PM MST.

When is the best time to schedule a call between PST and MST?

The working-hours overlap (09:00–17:00 in both zones) runs roughly 9:00 AM – 4:00 PM PST (≈ 7 hours). The midpoint of that window — 12:30 PM PST, 1:30 PM MST — is the safest single slot to propose for a live call.

What time zone does PST refer to?

PST refers to Pacific Standard Time (US) (IANA: America/Los_Angeles).

What time zone does MST refer to?

MST refers to Mountain Standard Time (US) (IANA: America/Denver).

Is PST on this page the same as other zones that share the letters "PST"?

On Clockjumper, PST refers to Pacific Standard Time in the United States (UTC−8). The US West Coast observes PST in winter and switches to PDT (UTC−7) during daylight saving time.

Is MST on this page the same as other zones that share the letters "MST"?

MST is Mountain Standard Time (UTC−7). Most of the US Mountain zone switches to MDT (UTC−6) in summer, but Arizona (except the Navajo Nation) stays on MST year-round.

• MST to PST
• AEDT to PST
• AEST to MST
• AEST to PST
• BST to MST
• Berlin to PST
• CDT to MST
• BST to PST
• CET to MST
• CDT to PST
• CST to MST
• CET to PST
• EDT to MST
• CST to PST
• EST to MST

• About PST (Pacific Standard Time (US)) →
• About MST (Mountain Standard Time (US)) →
• All timezone conversion pages →
• Explore workday-overlap research →