MST to PST Converter

Category: Time Zone Converters

- June 29, 2025

| |

Mountain Standard Time (MST)

UTC-7 • Denver, Phoenix, Salt Lake City

Conversion Settings

Configure your timezone conversion preferences

Auto Convert

Daylight Saving Aware

Show UTC Offset

Pacific Standard Time (PST)

UTC-8 • Los Angeles, San Francisco, Seattle

--:--:--

Select a time to convert

Time Difference: --

UTC Offset (MST): -07:00

UTC Offset (PST): -08:00

DST Status: --

MST Time: --

PST Time: --

Time Format:

Current MST: --:--:--

Current PST: --:--:--

🏔️ MST is UTC-7 during standard time and PST is UTC-8 during standard time. MST is consistently 1 hour ahead of PST.

MST to PST Conversion Guide

What is MST to PST Conversion?

MST to PST conversion helps you translate time between Mountain Standard Time and Pacific Standard Time zones. MST is UTC-7 and is used during winter months in the Mountain time zone, while PST is UTC-8 and is used during winter months in the Pacific time zone. The time difference is consistently 1 hour, with MST being ahead of PST.

Time Zone Information

Mountain Standard Time (MST): Used in the mountain region of the United States including Colorado, Utah, Arizona, and parts of Canada during standard time (November-March). Always UTC-7 during winter months.

Pacific Standard Time (PST): Used in the western United States including California, Oregon, Washington, and parts of Canada during standard time (November-March). Always UTC-8 during winter months.

Time Difference: MST is consistently 1 hour ahead of PST. This makes scheduling between Mountain and Pacific regions straightforward.

Daylight Saving Time Impact

Mountain Region: Observes MDT (Mountain Daylight Time, UTC-6) during summer and MST (UTC-7) during winter

Pacific Region: Observes PDT (Pacific Daylight Time, UTC-7) during summer and PST (UTC-8) during winter

Consistent Difference: The 1-hour time difference remains constant throughout the year as both regions observe DST

Common Conversion Examples

Business Hours

MST 9:00 AM → PST 8:00 AM

MST 5:00 PM → PST 4:00 PM

1-hour difference during standard time

Meeting Planning

Best MST Time: 9:00 AM - 4:00 PM

Converts to PST: 8:00 AM - 3:00 PM

Excellent business hours overlap

Travel Planning

MST Departure: 2:00 PM

PST Arrival: 1:00 PM

Westward travel time gain

Event Scheduling

MST Midnight: 11:00 PM PST (previous day)

MST Noon: 11:00 AM PST

Consistent 1-hour difference

Conversion Tips & Best Practices

• Subtract 1 hour from MST to get PST during standard time periods

• Both regions observe daylight saving time with synchronized dates

• MST is used November-March in the Mountain time zone

• PST is used November-March in the Pacific time zone

• Business hours have excellent overlap between these regions

• Arizona mostly stays on MST year-round (no daylight saving)

Convert MST to PST

If you’ve ever had to plan a meeting between Denver and Los Angeles, you’ve probably paused for a second and asked yourself, “Wait, what time is that over there?” This time conversion tool is here to take that guesswork out of the equation. Whether you’re coordinating a video call, catching a flight, or just trying to wish someone a happy birthday on time, it helps you flip between Mountain Standard Time (MST) and Pacific Standard Time (PST) in seconds.

Why use this MST to PST converter

This isn’t just a static clock. It’s a fully interactive time conversion calculator that lets you set a date and time in either MST or PST, see the exact converted time on the other side, and get detailed context like UTC offsets and Daylight Saving Time alignment. You can even toggle between 12-hour and 24-hour formats, or swap input/output zones with one click.

If you’re working in Salt Lake City and scheduling a call with someone in San Diego, this tool makes it almost too easy. Pick your time, and it instantly tells you what that looks like on their end. It’s especially handy for anyone in the Mountain or Pacific regions dealing with business hours, travel planning, or remote teams.

How to use the time converter

Step-by-step walkthrough

Select a date and time: Use the date and time pickers on the left side labeled "Mountain Standard Time (MST)" or "Pacific Standard Time (PST)", depending on your selected input zone.
Pick your time zone: Use the dropdown to choose whether you’re entering a time in MST or PST.
Check your settings: The tool defaults to auto-converting and DST-aware. You can change these under “Conversion Settings.”
Click "Convert Time": The result will appear in the right panel with the converted time, date, time difference, UTC offsets, and formatted strings for both zones.

Optional actions

Swap time zones: Hit the ⇄ button to flip input and output zones.
Use current time: Click the ⌚ button to instantly fill in the current time from your selected zone.
Reset everything: Need a clean slate? The 🔄 reset button restores all defaults.

Features that make your life easier

Live clocks for both zones

You’ll always see the current time in MST and PST ticking live at the bottom, so even before entering anything, you can check what time it is right now in either place.

Auto-convert option

If you check “Auto Convert,” the result updates instantly whenever you change the date, time, or input zone, no need to hit the convert button every time.

Daylight Saving Time support

The tool is DST-aware by default, which means it accounts for Mountain Daylight Time and Pacific Daylight Time when appropriate. No need to calculate whether a state is in summer mode, it handles that for you.

Toggle between 12-hour and 24-hour formats

Prefer military time? Click the “12 Hour” button to switch to “24 Hour” and vice versa. This affects both the live clocks and your conversion results.

Keyboard shortcuts built in

If you’re at a desk and working quickly, the tool supports keyboard shortcuts like:

Enter or Space: Convert time
S: Swap zones
N: Use current time
R: Reset
F: Toggle 12/24-hour format

Common questions people have

Does it account for Arizona not using DST?

Yes. Arizona (which uses MST year-round) is reflected accurately. That’s part of why the DST-aware checkbox is so useful—it ensures Arizona times don’t accidentally shift when they shouldn’t.

Is the time difference always one hour?

Yes. Whether in standard or daylight saving time, MST is always one hour ahead of PST. The converter reflects this consistently and clearly shows you the time difference on screen.

Can I convert from PST to MST too?

Absolutely. Use the swap button to reverse direction, or change the input zone dropdown to PST. The calculator handles either direction with the same features.

What’s the difference between showing offset or not?

Turning on “Show UTC Offset” adds more context if you’re working across multiple time zones. You’ll see "-07:00" for MST and "-08:00" for PST when this is enabled.

One real-world use case

You’re in Denver and setting up a virtual training with a client in San Francisco. You want it to start at 10:30 AM your time. Open this converter, choose 10:30 AM MST, and it immediately shows 9:30 AM PST. You confirm it fits their morning schedule and send the invite without second guessing.

Keep your schedule in sync, no matter the zone

This time converter takes the mental math out of MST to PST planning. Whether you're booking flights, setting deadlines, or managing teams across time zones, it gives you clean, accurate results fast. No more back-and-forth checks or confusion. Just set your time, get your answer, and move on with your day.