TimeThereTokyo to San Francisco time difference
San Francisco is 16h behind Tokyo (as of 2026-09-30).
Tokyo does not use daylight saving time. San Francisco does, so the gap changes twice a year.
Every gap change in 2026 and 2027
Gap means how far San Francisco is from Tokyo. Times are local at the moment the new gap starts.
2026
| Tokyo time | San Francisco time | Gap |
|---|---|---|
| Sun, Mar 8, 19:00 | Sun, Mar 8, 03:00 | 17h behind to 16h behind (shrinks) |
| Sun, Nov 1, 18:00 | Sun, Nov 1, 01:00 | 16h behind to 17h behind (grows) |
2027
| Tokyo time | San Francisco time | Gap |
|---|---|---|
| Sun, Mar 14, 19:00 | Sun, Mar 14, 03:00 | 17h behind to 16h behind (shrinks) |
| Sun, Nov 7, 18:00 | Sun, Nov 7, 01:00 | 16h behind to 17h behind (grows) |
Business hours overlap
- 17h behind: Working days of 9:00 to 18:00: 2h shared (Tokyo 09:00 to 11:00 is San Francisco 16:00 to 18:00). Working days of 8:00 to 20:00: 5h shared (Tokyo 08:00 to 13:00 is San Francisco 15:00 to 20:00).
- 16h behind: Working days of 9:00 to 18:00: 1h shared (Tokyo 09:00 to 10:00 is San Francisco 17:00 to 18:00). Working days of 8:00 to 20:00: 4h shared (Tokyo 08:00 to 12:00 is San Francisco 16:00 to 20:00).
FAQ
What is the time difference between Tokyo and San Francisco?
San Francisco is 17h behind from Jan 1, 2026, then 16h behind from Mar 8, 2026, then 17h behind from Nov 1, 2026, then 16h behind from Mar 14, 2027, then 17h behind from Nov 7, 2027. The exact number depends on daylight saving time.
When does the time difference between Tokyo and San Francisco change?
It changes on Mar 8, 2026, Nov 1, 2026, Mar 14, 2027, Nov 7, 2027 (dates in Tokyo time).
What are good meeting times for Tokyo and San Francisco?
Working days of 9:00 to 18:00: 2h shared (Tokyo 09:00 to 11:00 is San Francisco 16:00 to 18:00). Working days of 8:00 to 20:00: 5h shared (Tokyo 08:00 to 13:00 is San Francisco 15:00 to 20:00). Check the table above because the gap moves on the dates listed.
Related pairs
- Seoul to San Francisco
- Tokyo to Los Angeles
- Tokyo to New York
- Tokyo to Chicago
- Tokyo to Seattle
- Tokyo to Austin
- Tokyo to Toronto
- Tokyo to London
Data comes from the IANA time zone database as built into Node.js. Later rule changes by governments can move these dates.
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