PST to MST Converter

Category: Time Zone Converters

- June 29, 2025

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Pacific Standard Time (PST)

UTC-8 • Los Angeles, San Francisco, Seattle

Conversion Settings

Configure your timezone conversion preferences

Auto Convert

Daylight Saving Aware

Show UTC Offset

Mountain Standard Time (MST)

UTC-7 • Denver, Phoenix, Salt Lake City

--:--:--

Select a time to convert

Time Difference: --

UTC Offset (PST): -08:00

UTC Offset (MST): -07:00

DST Status: --

PST Time: --

MST Time: --

Time Format:

Current PST: --:--:--

Current MST: --:--:--

🌊 PST is UTC-8 during standard time and MST is UTC-7 during standard time. PST is consistently 1 hour behind MST.

PST to MST Conversion Guide

What is PST to MST Conversion?

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

Time Zone Information

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.

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.

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

Daylight Saving Time Impact

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

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

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

Common Conversion Examples

Business Hours

PST 9:00 AM → MST 10:00 AM

PST 5:00 PM → MST 6:00 PM

1-hour difference during standard time

Meeting Planning

Best PST Time: 8:00 AM - 3:00 PM

Converts to MST: 9:00 AM - 4:00 PM

Excellent business hours overlap

Travel Planning

PST Departure: 1:00 PM

MST Arrival: 2:00 PM

Eastward travel time loss

Event Scheduling

PST Midnight: 1:00 AM MST

PST Noon: 1:00 PM MST

Consistent 1-hour difference

Conversion Tips & Best Practices

• Add 1 hour to PST to get MST during standard time periods

• Both regions observe daylight saving time with synchronized dates

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

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

• Business hours have excellent overlap between these regions

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

Convert PST to MST in Seconds

If you’ve ever tried setting up a call between California and Colorado, you’ve probably run into the small—but important—difference between Pacific and Mountain time. That’s exactly where this PST to MST converter comes in. It lets you translate any date and time between the two zones instantly, showing you live current times, adjusted for daylight saving, with plenty of customization options to match your workflow.

How It Works

At its core, the converter takes a date and time from either Pacific Standard Time (PST) or Mountain Standard Time (MST) and gives you the equivalent in the other zone. You enter your time, pick your source zone, and the tool does the rest. The result shows up with full date formatting, time difference, UTC offset, and a live status on daylight saving, all in one place.

From Input to Output

There are two main fields you’ll use: one for the date and one for the time. Then you choose the timezone you’re starting from (either PST or MST). The converter automatically calculates what that moment would be in the other zone. If you’re not sure what time it is right now in each place, the live clock at the bottom helps with that too.

When You’d Use This

If you’re coordinating across time zones regularly, whether it’s for remote meetings, flight planning, or making sure you call your cousin in Denver at the right hour—this tool helps take the guesswork out. Let’s say you’re organizing a virtual event from San Francisco that attendees in Salt Lake City will join. Instead of fumbling with calendar math, just pop your local time into the tool and instantly get the MST equivalent.

Step-by-Step: Using the Time Converter

Pick your date and time using the calendar and time fields under the PST or MST section.
Select which timezone you’re starting from using the dropdown menu.
Click the “Convert Time” button to run the conversion manually, or let it auto-convert if that setting is turned on.
The converted time will appear instantly on the right, with extra details like the date, UTC offsets, and formatted views for both zones.

Quick Options You’ll Find Useful

Auto Convert: Keeps results live and updated while you change the input time or timezone.
Daylight Saving Aware: Adjusts for PDT or MDT when appropriate, so your results match real-world time changes.
Show UTC Offset: Adds the numerical UTC values to help if you’re juggling even more zones.
12/24 Hour Toggle: Switch formats depending on your preference or regional standards.

Extra Features That Keep Things Smooth

One great touch is the “Now” button. It instantly sets the current date and time based on your selected timezone, which makes quick comparisons effortless. You’ll also find a “Swap” button that flips your source and target zones, and a “Reset” button to go back to defaults if you want a clean slate.

Underneath the main display, you’ll see a breakdown of both current times in PST and MST, updated every second. That’s especially useful when you're working late and need to know what time it is in another city at a glance.

Things That Might Trip You Up

Leaving fields blank: If you forget to enter a date or time, the converter won’t run. You’ll just see placeholder values.
Mixing up your input zone: Make sure the time you enter matches the zone you select. If you’re typing in Mountain time but the dropdown is still on Pacific, you’ll get the wrong output.
Daylight Saving settings: If the “DST Aware” box is off, your results may be off by an hour during summer months. Leave it on for most real-world planning.

A Real-World Use Case: Phoenix to Los Angeles Flight Planning

Let’s say you’re catching a flight from Phoenix at 3:00 PM MST and want to know what that means in Pacific time for a friend picking you up at LAX. Plug 3:00 PM into the tool, select MST as your source, and boom, you get 2:00 PM PST. That makes pickup time planning simple, no math required.

Stay On Schedule, Wherever You Are

Whether you're keeping projects aligned, making personal calls, or just figuring out when to tune into a live stream, this converter keeps you grounded. It’s fast, accurate, and removes the need to second-guess if you're an hour early or late. Give it a try and let time zones stop being a headache.