PSTtoMSTPacific Standard Time to Mountain Standard Time
PST
Pacific Standard Time (PDT)MST
Mountain Standard Time (MDT)Mutual Working Window: 7 Overlapping Hours
Recommended calling window between PST and MST
Both locations share 7 overlapping standard business hours (9:00 AM – 5:00 PM). This is the premier window for real-time video conferences, corporate calls, and instant collaboration without outside-hours disruption.
24-Hour Schedule Conversion Matrix
Compare every hour of the day between PST and MST.
| PST Time (Pacific Standard Time) | MST Time (Mountain Standard Time) | Status & Recommendation |
|---|---|---|
| 00:00AM | 01:00AM | ⚪ Outside Work Hours |
| 01:00AM | 02:00AM | ⚪ Outside Work Hours |
| 02:00AM | 03:00AM | ⚪ Outside Work Hours |
| 03:00AM | 04:00AM | ⚪ Outside Work Hours |
| 04:00AM | 05:00AM | ⚪ Outside Work Hours |
| 05:00AM | 06:00AM | ⚪ Outside Work Hours |
| 06:00AM | 07:00AM | ⚪ Outside Work Hours |
| 07:00AM | 08:00AM | ⚪ Outside Work Hours |
| 08:00AM | 09:00AM | ⚪ Outside Work Hours |
| 09:00AM | 10:00AM | 🟢 Ideal Meeting Window |
| 10:00AM | 11:00AM | 🟢 Ideal Meeting Window |
| 11:00AM | 12:00PM | 🟢 Ideal Meeting Window |
| 12:00PM | 13:00PM | 🟢 Ideal Meeting Window |
| 13:00PM | 14:00PM | 🟢 Ideal Meeting Window |
| 14:00PM | 15:00PM | 🟢 Ideal Meeting Window |
| 15:00PM | 16:00PM | 🟢 Ideal Meeting Window |
| 16:00PM | 17:00PM | 🟡 Feasible (Shoulder Hour) |
| 17:00PM | 18:00PM | ⚪ Outside Work Hours |
| 18:00PM | 19:00PM | ⚪ Outside Work Hours |
| 19:00PM | 20:00PM | ⚪ Outside Work Hours |
| 20:00PM | 21:00PM | ⚪ Outside Work Hours |
| 21:00PM | 22:00PM | ⚪ Outside Work Hours |
| 22:00PM | 23:00PM | ⚪ Outside Work Hours |
| 23:00PM | 00:00AM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between PST and MST?
MST is 1 hour ahead of PST. When it is 12:00 PM (noon) in PST, the current synchronized time in MST is 1:00 PM.
What are the overlapping working hours between PST and MST?
There are 7 overlapping standard business hours (9:00 AM – 5:00 PM) between PST and MST. The optimal scheduling window is 9:00 AM – 4:00 PM in PST (10:00 AM – 5:00 PM in MST).
Does daylight saving time affect the conversion between PST and MST?
Yes. Both PST and MST observe seasonal daylight saving time shifts.
What regions and major cities observe PST and MST?
PST (Pacific Standard Time) is primarily observed across Western North America (US West Coast & British Columbia) (key hubs include Los Angeles, San Francisco, Seattle, Vancouver). MST (Mountain Standard Time) is observed across Mountain Region North America (Colorado, Arizona, Utah, Alberta) (key hubs include Denver, Phoenix, Salt Lake City, Calgary).
What is 9:00 AM PST in MST?
9:00 AM in PST corresponds to 10:00 AM in MST. You can cross-reference every hour of the day in the 24-hour visual schedule table above.
Which time zone is ahead, PST or MST?
MST is ahead by 1 hour.