JSTtoPSTJapan Standard Time to Pacific Standard Time
JST
Japan Standard Time (GMT+9)PST
Pacific Standard Time (PDT)Feasible Shoulder Hours Window
Recommended calling window between JST and PST
There are no overlapping 9-to-5 working hours between JST and PST. 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 JST and PST.
| JST Time (Japan Standard Time) | PST Time (Pacific Standard Time) | Status & Recommendation |
|---|---|---|
| 00:00AM | 08:00AM-1 day | ⚪ Outside Work Hours |
| 01:00AM | 09:00AM-1 day | ⚪ Outside Work Hours |
| 02:00AM | 10:00AM-1 day | ⚪ Outside Work Hours |
| 03:00AM | 11:00AM-1 day | ⚪ Outside Work Hours |
| 04:00AM | 12:00PM-1 day | ⚪ Outside Work Hours |
| 05:00AM | 13:00PM-1 day | ⚪ Outside Work Hours |
| 06:00AM | 14:00PM-1 day | ⚪ Outside Work Hours |
| 07:00AM | 15:00PM-1 day | ⚪ Outside Work Hours |
| 08:00AM | 16:00PM-1 day | ⚪ Outside Work Hours |
| 09:00AM | 17:00PM-1 day | 🟡 Feasible (Shoulder Hour) |
| 10:00AM | 18:00PM-1 day | 🟡 Feasible (Shoulder Hour) |
| 11:00AM | 19:00PM-1 day | 🟡 Feasible (Shoulder Hour) |
| 12:00PM | 20:00PM-1 day | 🟡 Feasible (Shoulder Hour) |
| 13:00PM | 21:00PM-1 day | ⚪ Outside Work Hours |
| 14:00PM | 22:00PM-1 day | ⚪ Outside Work Hours |
| 15:00PM | 23:00PM-1 day | ⚪ Outside Work Hours |
| 16:00PM | 00:00AM | ⚪ Outside Work Hours |
| 17:00PM | 01:00AM | ⚪ Outside Work Hours |
| 18:00PM | 02:00AM | ⚪ Outside Work Hours |
| 19:00PM | 03:00AM | ⚪ Outside Work Hours |
| 20:00PM | 04:00AM | ⚪ Outside Work Hours |
| 21:00PM | 05:00AM | ⚪ Outside Work Hours |
| 22:00PM | 06:00AM | ⚪ Outside Work Hours |
| 23:00PM | 07:00AM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between JST and PST?
PST is 16 hours behind JST. When it is 12:00 PM (noon) in JST, the current synchronized time in PST is 8:00 PM.
What are the overlapping working hours between JST and PST?
Due to the timezone separation, standard 9-to-5 working shifts do not overlap. The recommended compromise window falls during morning/evening shoulder periods (7:00 AM – 1:00 PM in JST = 3:00 PM – 9:00 PM in PST).
Does daylight saving time affect the conversion between JST and PST?
Yes. PST observes daylight saving shifts (PDT), shifting the offset difference by 1 hour between summer and winter while JST stays on fixed standard time year-round.
What regions and major cities observe JST and PST?
JST (Japan Standard Time) is primarily observed across East Asia (Japan) (key hubs include Tokyo, Osaka, Yokohama, Nagoya). 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 JST in PST?
9:00 AM in JST corresponds to 5:00 PM in PST. You can cross-reference every hour of the day in the 24-hour visual schedule table above.
Which time zone is ahead, JST or PST?
JST is ahead by 16 hours.