MST to PST converter
PST is 1 hour behind MST. MST and PST 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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For conversions between other time zones, visit timezone.day.
MST to PST, hour by hour
Shaded rows are inside a nine-to-five working day in both Denver and Los Angeles.
| MST | PST |
|---|---|
| 6:00am | 5:00am |
| 7:00am | 6:00am |
| 8:00am | 7:00am |
| 9:00am | 8:00am |
| 10:00am | 9:00am |
| 11:00am | 10:00am |
| 12:00pm | 11:00am |
| 1:00pm | 12:00pm |
| 2:00pm | 1:00pm |
| 3:00pm | 2:00pm |
| 4:00pm | 3:00pm |
| 5:00pm | 4:00pm |
| 6:00pm | 5:00pm |
| 7:00pm | 6:00pm |
| 8:00pm | 7:00pm |
| 9:00pm | 8:00pm |
| 10:00pm | 9:00pm |
MST to PST 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 behind.
What changes is the name. Between March and November those same two clocks are properly called MDT and PDT, for Mountain Daylight Time and Pacific Daylight Time. Almost nobody switches, and it does not matter here: whoever writes MST in July has the right time and the wrong letters.
MST and PST
- Same all year
- Yes
- Shared office hours
- 7 hours
Booking a call between Denver and Los Angeles
You share about 7 hours of a normal nine-to-five day. 10:00am to 5:00pm in MST is 9:00am to 4:00pm in PST, inside office hours at both ends, and the only window where neither side is doing you a favour.
When it is 9:00am in Denver it is 8:00am in Los Angeles. When Los Angeles opens at 9:00am, Denver reads 10:00am.
MST covers the US mountain states and Alberta: Denver, Phoenix, Salt Lake City, Calgary. PST covers the US west coast and British Columbia: Los Angeles, San Francisco, Seattle, Vancouver, San Diego.
PDT to PST is the same conversion
PDT to PST describes exactly the same 1 hour shift as MST to PST. The letters differ because they name the winter and summer forms of the same clocks; the arithmetic does not differ at all.
So the table above answers that query too. There is no second page to look for, and no version of the year in which the answer is different.
MST to PST: common questions
What time is it in PST when it is 9am MST?
8:00am. PST is 1 hour behind MST. The table above runs the same conversion for every hour of the day.
Is MST to PST 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 MDT and PDT in summer; the gap does not.
Does converting MST to PST 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 MST and PST?
You share about 7 hours of the normal nine-to-five working day: 10:00am to 5:00pm in MST is 9:00am to 4:00pm in PST. Anything inside that window is inside office hours at both ends.
Is this MST to PST 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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