MST to PST time difference
Right now US Pacific Time is 1 hour behind US Mountain Time: when it is 9:00 AM in US Mountain Time (MDT), it is 8:00 AM in US Pacific Time (PDT). The difference is not fixed. US Mountain Time and US Pacific Time change the clocks twice a year, so from November 2, 2026 the gap becomes 1 hour, and from March 15, 2027 it goes back to 1 hour.
MT, MST and MDT; PT, PST and PDT
MT means Mountain Time, whatever the season. It is MST (Mountain Standard Time, UTC-7) from early November to mid-March and MDT (Mountain Daylight Time, UTC-6) the rest of the year. Today it is MDT. PT means Pacific Time, whatever the season. It is PST (Pacific Standard Time, UTC-8) from early November to mid-March and PDT (Pacific Daylight Time, UTC-7) the rest of the year. Today it is PDT. Most of Arizona stays on MST all year, so in summer Arizona has the same clock time as Pacific Time; this page follows Denver, which changes the clocks. Because all of these zones change their clocks on the same nights, the gap between MT and PT stays 1 hour all year. People often write "EST" all year when they mean Eastern Time; the times on this page are correct either way.
MST to PST conversion table
Every hour of the day in US Mountain Time and the matching time in US Pacific Time, for today, October 13, 2026.
| MST (US Mountain Time) | PST (US Pacific Time) |
|---|---|
| 12:00 AM | 11:00 PM (previous day) |
| 1:00 AM | 12:00 AM |
| 2:00 AM | 1:00 AM |
| 3:00 AM | 2:00 AM |
| 4:00 AM | 3:00 AM |
| 5:00 AM | 4:00 AM |
| 6:00 AM | 5:00 AM |
| 7:00 AM | 6:00 AM |
| 8:00 AM | 7:00 AM |
| 9:00 AM | 8:00 AM |
| 10:00 AM | 9:00 AM |
| 11:00 AM | 10:00 AM |
| 12:00 PM | 11:00 AM |
| 1:00 PM | 12:00 PM |
| 2:00 PM | 1:00 PM |
| 3:00 PM | 2:00 PM |
| 4:00 PM | 3:00 PM |
| 5:00 PM | 4:00 PM |
| 6:00 PM | 5:00 PM |
| 7:00 PM | 6:00 PM |
| 8:00 PM | 7:00 PM |
| 9:00 PM | 8:00 PM |
| 10:00 PM | 9:00 PM |
| 11:00 PM | 10:00 PM |
Scheduling tips
The gap is small, so normal working hours mostly overlap. When you share a time, write the zone with it, such as "9:00 AM MST", and remember that a time near midnight can fall on a different date on the other side.
Reverse: PST to MST. Other converters: PKT to PST · EST to PST · MST to EST · MST to CST · CST to PST · IST to PST · any time zone to your time
Frequently asked questions
What is the time difference between MST and PST?
Right now US Pacific Time is 1 hour behind US Mountain Time. The gap changes to 1 hour on November 2, 2026 when daylight saving time starts or ends.
What time is it in US Pacific Time when it is 9 AM in US Mountain Time?
8:00 AM.
What is 8 PM MST in PST?
7:00 PM PDT.
Does the MST to PST difference change during the year?
Yes. One or both places use daylight saving time, so the gap changes on November 2, 2026 and March 15, 2027.
How do I convert MST to PST?
Enter the MST time and date at the top. The converter applies the difference for that date, including daylight saving time.
What is 12 PM MST in PST?
11:00 AM today.
What is 6 PM MST in PST?
5:00 PM today.
What is the best time for a call between US Mountain Time and US Pacific Time?
Pick a time that is in working hours in both places; the hour-by-hour table on this page shows both clocks side by side.