PST to JST Time Converter
JST is 16 hours ahead of PST. The US West Coast is currently on PDT (UTC-7:00), and JST is UTC+9:00.
Best Time to Call Between PST and JST
Standard 9-to-5 hours in these two zones never overlap, so someone has to take the call outside their working day. The most workable window is 3:00 PM to 10:00 PM PST, which is 7:00 AM to 2:00 PM JST.
both at work PST only JST only neither — hours along the strip are PST.
Common Times Converted
PST on the left, JST on the right.
PST to JST: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| PST | JST | Working hours |
|---|---|---|
| 12:00 AM | 4:00 PM | JST only |
| 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 | PST only |
| 10:00 AM | 2:00 AM next day | PST only |
| 11:00 AM | 3:00 AM next day | PST only |
| 12:00 PM | 4:00 AM next day | PST only |
| 1:00 PM | 5:00 AM next day | PST only |
| 2:00 PM | 6:00 AM next day | PST only |
| 3:00 PM | 7:00 AM next day | PST only |
| 4:00 PM | 8:00 AM next day | PST only |
| 5:00 PM | 9:00 AM next day | JST only |
| 6:00 PM | 10:00 AM next day | JST only |
| 7:00 PM | 11:00 AM next day | JST only |
| 8:00 PM | 12:00 PM next day | JST only |
| 9:00 PM | 1:00 PM next day | JST only |
| 10:00 PM | 2:00 PM next day | JST only |
| 11:00 PM | 3:00 PM next day | JST only |
What PST and JST Actually Are
PST — Pacific Standard Time
Los Angeles, San Francisco, Seattle, Las Vegas, Vancouver. Standing at UTC-8:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to PST. The Philippines occasionally uses PST for Philippine Standard Time (UTC+8); PHT is the clearer label for that.
California voted in 2018 to move to permanent daylight time, but the change needs an act of Congress and has never happened, so PST is still the winter standard.
JST — Japan Standard Time
Tokyo, Osaka, Yokohama, Nagoya, Sapporo. Standing at UTC+9:00 as written, and the region does not change its clocks, so that offset holds all year. Japan does not observe daylight saving, so this offset is fixed year-round.
Japan abolished daylight saving in 1952 and has resisted every attempt to reintroduce it, including a proposal around the 2020 Olympics.
What This Means in Practice
The date changes mid-working-day
For 8 of the eight hours in a normal PST working day, the equivalent JST time falls on a different calendar date. Anything scheduled in that stretch needs the date checked as well as the time, or a Tuesday call quietly becomes a Wednesday one at the other end.
This gap is not fixed
PST changes its clocks and JST does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, November 1, 2026 unless someone resets it.
Nearly opposite sides of the clock
At 16 hours apart, one side's morning is the other side's night. Handing work over at the end of a shift usually beats trying to get both parties in the same call.
Major Cities in Each Zone
Cities on PST
Cities on JST
Frequently Asked Questions
What is the time difference between PST and JST?
JST is 16 hours ahead of PST. That is the live figure. Taken strictly as written, the gap between PST and JST is 17 hours — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM PST in JST?
9:00 AM PST is 1:00 AM the next day JST.
What are the best hours to schedule a call between PST and JST?
Standard business hours in these two zones do not overlap at all, so one side has to work outside the 9-to-5. The most workable window is 3:00 PM to 10:00 PM PST, which is 7:00 AM to 2:00 PM JST.
Does the difference between PST and JST change during the year?
Yes. PST observes daylight saving and JST does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, November 1, 2026.
Does PST always mean Pacific Standard Time?
The Philippines occasionally uses PST for Philippine Standard Time (UTC+8); PHT is the clearer label for that.
Does JST always mean Japan Standard Time?
Japan does not observe daylight saving, so this offset is fixed year-round.