PST to MST converter
MST is 1 hour ahead of PST. PST and MST are exactly 1 hour apart on every day of the year. The full hour-by-hour table is below, and it reads perfectly well with JavaScript turned off. No account, no email address.
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Nothing leaves this browser. There is no account and nothing is uploaded. Offsets are fixed values, not a live feed. See the daylight saving note below.
For conversions between other time zones, visit timezone.day.
PST to MST, hour by hour
Shaded rows are inside a nine-to-five working day in both Los Angeles and Denver.
| PST | MST |
|---|---|
| 6:00am | 7:00am |
| 7:00am | 8:00am |
| 8:00am | 9:00am |
| 9:00am | 10:00am |
| 10:00am | 11:00am |
| 11:00am | 12:00pm |
| 12:00pm | 1:00pm |
| 1:00pm | 2:00pm |
| 2:00pm | 3:00pm |
| 3:00pm | 4:00pm |
| 4:00pm | 5:00pm |
| 5:00pm | 6:00pm |
| 6:00pm | 7:00pm |
| 7:00pm | 8:00pm |
| 8:00pm | 9:00pm |
| 9:00pm | 10:00pm |
| 10:00pm | 11:00pm |
PST to MST never changes by an hour
Both are United States zones, both change their clocks on the second Sunday in March and the first Sunday in November, and both move by the same hour on the same morning. There is no date on which this conversion is anything other than 1 hour ahead.
What changes is the name. Between March and November those same two clocks are properly called PDT and MDT, for Pacific Daylight Time and Mountain Daylight Time. Almost nobody switches, and it does not matter here: whoever writes PST in July has the right time and the wrong letters.
PST and MST
- Same all year
- Yes
- Shared office hours
- 7 hours
Booking a call between Los Angeles and Denver
You share about 7 hours of a normal nine-to-five day. 9:00am to 4:00pm in PST is 10:00am to 5:00pm in MST. That is inside office hours at both ends, and the only window where neither side is doing you a favour.
When it is 9:00am in Los Angeles it is 10:00am in Denver. When Denver opens at 9:00am, Los Angeles reads 8:00am.
PST covers the US west coast and British Columbia: Los Angeles, San Francisco, Seattle, Vancouver, San Diego. MST covers the US mountain states and Alberta: Denver, Phoenix, Salt Lake City, Calgary.
PST to MST: common questions
What time is it in MST when it is 9am PST?
10:00am. MST is 1 hour ahead of PST. The table above runs the same conversion for every hour of the day.
Is PST to MST ever a different number of hours?
No. Both are United States zones and both change their clocks on the same two mornings, so the difference is 1 hour in January and the same in July. The abbreviations change to PDT and MDT in summer; the gap does not.
Does converting PST to MST ever change the date?
For most of the working day, no: the two clocks stay on the same calendar day. Late evening and very early morning can straddle midnight, which is why the table above shows the day alongside the time.
What is a good time to schedule a call between PST and MST?
You share about 7 hours of the normal nine-to-five working day: 9:00am to 4:00pm in PST is 10:00am to 5:00pm in MST. Anything inside that window is inside office hours at both ends.
Is this PST to MST converter free?
Yes, completely. No account, no email address, no trial. The table works with JavaScript turned off and nothing you type is sent anywhere.
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