PST to JST
On Oct 23, 2026, Japan Standard Time is 16 hours ahead of Pacific Time: 9:00 AM PDT is 1:00 AM JST the next day. The gap changes during the year because of daylight saving time; the dates are below.
JST vs PST over the next 12 months
| Period | JST is | Example |
|---|---|---|
| Oct 23, 2026 to Nov 1, 2026 | 16 hours ahead | 9:00 AM PDT = 1:00 AM JST (next day) |
| Nov 1, 2026 to Mar 14, 2027 | 17 hours ahead | 9:00 AM PST = 2:00 AM JST (next day) |
| Mar 14, 2027 onwards | 16 hours ahead | 9:00 AM PDT = 1:00 AM JST (next day) |
PST to JST conversion table
Every hour of a weekday around Oct 23, 2026, in both zones.
| Pacific Time | Japan Standard Time |
|---|---|
| 12:00 AM | 4:00 PM |
| 1:00 AM | 5:00 PM |
| 2:00 AM | 6:00 PM |
| 3:00 AM | 7:00 PM |
| 4:00 AM | 8:00 PM |
| 5:00 AM | 9:00 PM |
| 6:00 AM | 10:00 PM |
| 7:00 AM | 11:00 PM |
| 8:00 AM | 12:00 AM (next day) |
| 9:00 AM | 1:00 AM (next day) |
| 10:00 AM | 2:00 AM (next day) |
| 11:00 AM | 3:00 AM (next day) |
| 12:00 PM | 4:00 AM (next day) |
| 1:00 PM | 5:00 AM (next day) |
| 2:00 PM | 6:00 AM (next day) |
| 3:00 PM | 7:00 AM (next day) |
| 4:00 PM | 8:00 AM (next day) |
| 5:00 PM | 9:00 AM (next day) |
| 6:00 PM | 10:00 AM (next day) |
| 7:00 PM | 11:00 AM (next day) |
| 8:00 PM | 12:00 PM (next day) |
| 9:00 PM | 1:00 PM (next day) |
| 10:00 PM | 2:00 PM (next day) |
| 11:00 PM | 3:00 PM (next day) |
Best time for a meeting
There is no 9-to-5 overlap; within an 8 AM–8 PM day the zones overlap for 4 hours on a weekday: 4:00 PM–8:00 PM PDT, which is 8:00 AM–12:00 PM JST.
Comparing more than two places? The meeting planner lines up working hours for up to six cities.
Daylight saving time
Pacific Time (PST/PDT)
- Nov 1, 2026: clocks go back 1 hour at 2:00 AM (UTC−7 → UTC−8)
- Mar 14, 2027: clocks go forward 1 hour at 2:00 AM (UTC−8 → UTC−7)
Where these clocks are used
- Pacific Time (PST/PDT): Los Angeles, San Francisco, Seattle, Vancouver. IANA zone
America/Los_Angeles. - Japan Standard Time (JST): all of Japan. IANA zone
Asia/Tokyo.
Questions
What time is it in JST when it is 9 AM PST?
On Oct 23, 2026, 9:00 AM PDT is 1:00 AM JST the next day. On other dates the answer can shift by an hour because of daylight saving time; the table of periods on this page gives each one.
How many hours ahead of PST is JST?
It depends on the date. Oct 23, 2026 to Nov 1, 2026: JST is 16 hours ahead. Nov 1, 2026 to Mar 14, 2027: JST is 17 hours ahead. Mar 14, 2027 onwards: JST is 16 hours ahead.
Do PST and JST observe daylight saving time?
Pacific Time switches to PDT (UTC−7) in summer and back to PST (UTC−8) in winter. Japan Standard Time stays on UTC+9 all year.
What is the best time for a meeting between PST and JST?
There is no 9-to-5 overlap; within an 8 AM–8 PM day the zones overlap for 4 hours on a weekday: 4:00 PM–8:00 PM PDT, which is 8:00 AM–12:00 PM JST.
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Related conversions
- JST to PST (reverse)
- EST to JST
- CST to JST
- MST to JST
- PST to EST
- PST to CST
- PST to MST
- PST to UTC
- PST to GMT
- PST to CET
- PST to IST
- PST to SGT
- All time zones
Computed from the IANA time zone database on Oct 23, 2026. Live clocks and the converter use your browser's copy of the same data.