PSTtoGMTPacific Standard Time to Greenwich Mean Time
PST
Pacific Standard Time (PDT)GMT
Greenwich Mean Time (GMT)Mutual Working Window: 1 Overlapping Hour
Recommended calling window between PST and GMT
Both locations share 1 overlapping standard business hour (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 GMT.
| PST Time (Pacific Standard Time) | GMT Time (Greenwich Mean Time) | Status & Recommendation |
|---|---|---|
| 00:00AM | 07:00AM | ⚪ Outside Work Hours |
| 01:00AM | 08:00AM | ⚪ Outside Work Hours |
| 02:00AM | 09:00AM | ⚪ Outside Work Hours |
| 03:00AM | 10:00AM | ⚪ Outside Work Hours |
| 04:00AM | 11:00AM | ⚪ Outside Work Hours |
| 05:00AM | 12:00PM | ⚪ Outside Work Hours |
| 06:00AM | 13:00PM | ⚪ Outside Work Hours |
| 07:00AM | 14:00PM | ⚪ Outside Work Hours |
| 08:00AM | 15:00PM | ⚪ Outside Work Hours |
| 09:00AM | 16:00PM | 🟢 Ideal Meeting Window |
| 10:00AM | 17:00PM | 🟡 Feasible (Shoulder Hour) |
| 11:00AM | 18:00PM | 🟡 Feasible (Shoulder Hour) |
| 12:00PM | 19:00PM | 🟡 Feasible (Shoulder Hour) |
| 13:00PM | 20:00PM | 🟡 Feasible (Shoulder Hour) |
| 14:00PM | 21:00PM | ⚪ Outside Work Hours |
| 15:00PM | 22:00PM | ⚪ Outside Work Hours |
| 16:00PM | 23:00PM | ⚪ Outside Work Hours |
| 17:00PM | 00:00AM | ⚪ Outside Work Hours |
| 18:00PM | 01:00AM | ⚪ Outside Work Hours |
| 19:00PM | 02:00AM | ⚪ Outside Work Hours |
| 20:00PM | 03:00AM | ⚪ Outside Work Hours |
| 21:00PM | 04:00AM | ⚪ Outside Work Hours |
| 22:00PM | 05:00AM | ⚪ Outside Work Hours |
| 23:00PM | 06:00AM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between PST and GMT?
GMT is 7 hours ahead of PST. When it is 12:00 PM (noon) in PST, the current synchronized time in GMT is 7:00 PM.
What are the overlapping working hours between PST and GMT?
There are 1 overlapping standard business hours (9:00 AM – 5:00 PM) between PST and GMT. The optimal scheduling window is 9:00 AM – 10:00 AM in PST (4:00 PM – 5:00 PM in GMT).
Does daylight saving time affect the conversion between PST and GMT?
Yes. Both PST and GMT observe seasonal daylight saving time shifts.
What regions and major cities observe PST and GMT?
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). GMT (Greenwich Mean Time) is observed across Western Europe & West Africa (United Kingdom, Ireland, Portugal, Ghana) (key hubs include London, Dublin, Lisbon, Accra).
What is 9:00 AM PST in GMT?
9:00 AM in PST corresponds to 4:00 PM in GMT. You can cross-reference every hour of the day in the 24-hour visual schedule table above.
Which time zone is ahead, PST or GMT?
GMT is ahead by 7 hours.