MSTtoPSTMountain Standard Time to Pacific Standard Time
MST
Mountain Standard Time (MDT)PST
Pacific Standard Time (PDT)Mutual Working Window: 7 Overlapping Hours
Recommended calling window between MST and PST
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 MST and PST.
| MST Time (Mountain Standard Time) | PST Time (Pacific Standard Time) | Status & Recommendation |
|---|---|---|
| 00:00AM | 23:00PM-1 day | ⚪ Outside Work Hours |
| 01:00AM | 00:00AM | ⚪ Outside Work Hours |
| 02:00AM | 01:00AM | ⚪ Outside Work Hours |
| 03:00AM | 02:00AM | ⚪ Outside Work Hours |
| 04:00AM | 03:00AM | ⚪ Outside Work Hours |
| 05:00AM | 04:00AM | ⚪ Outside Work Hours |
| 06:00AM | 05:00AM | ⚪ Outside Work Hours |
| 07:00AM | 06:00AM | ⚪ Outside Work Hours |
| 08:00AM | 07:00AM | ⚪ Outside Work Hours |
| 09:00AM | 08:00AM | 🟡 Feasible (Shoulder Hour) |
| 10:00AM | 09:00AM | 🟢 Ideal Meeting Window |
| 11:00AM | 10:00AM | 🟢 Ideal Meeting Window |
| 12:00PM | 11:00AM | 🟢 Ideal Meeting Window |
| 13:00PM | 12:00PM | 🟢 Ideal Meeting Window |
| 14:00PM | 13:00PM | 🟢 Ideal Meeting Window |
| 15:00PM | 14:00PM | 🟢 Ideal Meeting Window |
| 16:00PM | 15:00PM | 🟢 Ideal Meeting Window |
| 17:00PM | 16:00PM | ⚪ Outside Work Hours |
| 18:00PM | 17:00PM | ⚪ Outside Work Hours |
| 19:00PM | 18:00PM | ⚪ Outside Work Hours |
| 20:00PM | 19:00PM | ⚪ Outside Work Hours |
| 21:00PM | 20:00PM | ⚪ Outside Work Hours |
| 22:00PM | 21:00PM | ⚪ Outside Work Hours |
| 23:00PM | 22:00PM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between MST and PST?
PST is 1 hour behind MST. When it is 12:00 PM (noon) in MST, the current synchronized time in PST is 11:00 AM.
What are the overlapping working hours between MST and PST?
There are 7 overlapping standard business hours (9:00 AM – 5:00 PM) between MST and PST. The optimal scheduling window is 10:00 AM – 5:00 PM in MST (9:00 AM – 4:00 PM in PST).
Does daylight saving time affect the conversion between MST and PST?
Yes. Both MST and PST observe seasonal daylight saving time shifts.
What regions and major cities observe MST and PST?
MST (Mountain Standard Time) is primarily observed across Mountain Region North America (Colorado, Arizona, Utah, Alberta) (key hubs include Denver, Phoenix, Salt Lake City, Calgary). PST (Pacific Standard Time) is observed across Western North America (US West Coast & British Columbia) (key hubs include Los Angeles, San Francisco, Seattle, Vancouver).
What is 9:00 AM MST in PST?
9:00 AM in MST corresponds to 8:00 AM in PST. You can cross-reference every hour of the day in the 24-hour visual schedule table above.
Which time zone is ahead, MST or PST?
MST is ahead by 1 hour.