PSTtoJSTPacific Standard Time to Japan Standard Time
PST
Pacific Standard Time (PDT)JST
Japan Standard Time (GMT+9)Feasible Shoulder Hours Window
Recommended calling window between PST and JST
There are no overlapping 9-to-5 working hours between PST and JST. The optimal compromise window falls during morning/evening shoulder periods (7:00 AM – 9:00 PM) when participants in both locations are awake.
24-Hour Schedule Conversion Matrix
Compare every hour of the day between PST and JST.
| PST Time (Pacific Standard Time) | JST Time (Japan Standard Time) | Status & Recommendation |
|---|---|---|
| 00:00AM | 16:00PM | ⚪ Outside Work Hours |
| 01:00AM | 17:00PM | ⚪ Outside Work Hours |
| 02:00AM | 18:00PM | ⚪ Outside Work Hours |
| 03:00AM | 19:00PM | ⚪ Outside Work Hours |
| 04:00AM | 20:00PM | ⚪ Outside Work Hours |
| 05:00AM | 21:00PM | ⚪ Outside Work Hours |
| 06:00AM | 22:00PM | ⚪ Outside Work Hours |
| 07:00AM | 23:00PM | ⚪ Outside Work Hours |
| 08:00AM | 00:00AM | ⚪ Outside Work Hours |
| 09:00AM | 01:00AM | ⚪ Outside Work Hours |
| 10:00AM | 02:00AM | ⚪ Outside Work Hours |
| 11:00AM | 03:00AM | ⚪ Outside Work Hours |
| 12:00PM | 04:00AM | ⚪ Outside Work Hours |
| 13:00PM | 05:00AM | ⚪ Outside Work Hours |
| 14:00PM | 06:00AM | ⚪ Outside Work Hours |
| 15:00PM | 07:00AM | 🟡 Feasible (Shoulder Hour) |
| 16:00PM | 08:00AM | 🟡 Feasible (Shoulder Hour) |
| 17:00PM | 09:00AM | ⚪ Outside Work Hours |
| 18:00PM | 10:00AM | ⚪ Outside Work Hours |
| 19:00PM | 11:00AM | ⚪ Outside Work Hours |
| 20:00PM | 12:00PM | ⚪ Outside Work Hours |
| 21:00PM | 13:00PM | ⚪ Outside Work Hours |
| 22:00PM | 14:00PM | ⚪ Outside Work Hours |
| 23:00PM | 15:00PM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between PST and JST?
JST is 16 hours ahead of PST. When it is 12:00 PM (noon) in PST, the current synchronized time in JST is 4:00 AM.
What are the overlapping working hours between PST and JST?
Due to the timezone separation, standard 9-to-5 working shifts do not overlap. The recommended compromise window falls during morning/evening shoulder periods (3:00 PM – 9:00 PM in PST = 7:00 AM – 1:00 PM in JST).
Does daylight saving time affect the conversion between PST and JST?
Yes. PST observes daylight saving shifts, moving the offset by 1 hour on scheduled transition dates.
What regions and major cities observe PST and JST?
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). JST (Japan Standard Time) is observed across East Asia (Japan) (key hubs include Tokyo, Osaka, Yokohama, Nagoya).
What is 9:00 AM PST in JST?
9:00 AM in PST corresponds to 1:00 AM in JST. You can cross-reference every hour of the day in the 24-hour visual schedule table above.
Which time zone is ahead, PST or JST?
JST is ahead by 16 hours.