Tokyo to San Francisco time difference
Tokyo
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San Francisco
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Difference right now: —
Tokyo (Japan) and San Francisco (United States) are 16 hours apart, with San Francisco behind Tokyo right now. Tokyo is UTC+9; San Francisco is UTC−7. Japan's business and engineering reference time. It does not observe daylight saving. Silicon Valley product and engineering standups. The clock is the same Pacific Time as Los Angeles. Weekday 09:00–18:00 overlaps for 1 hour. The figures are computed for 2026年10月19日 Japan time from the timezone database. The clocks at the top update every second in your browser.
Current difference
When it is noon in Tokyo, it is previous day 20:00 in San Francisco. The gap is 16 hours (San Francisco minus Tokyo).
Does daylight saving change the gap?
Tokyo stays at UTC+9 for at least the next year. Just after Nov 1, 2026 01:59 San Francisco time, the clock reads Nov 1, 2026 01:00 and the offset moves from UTC−7 to UTC−8. The Tokyo–San Francisco gap goes from San Francisco 16 hours behind to San Francisco 17 hours behind. Just after Mar 14, 2027 01:59 San Francisco time, the clock reads Mar 14, 2027 03:00 and the offset moves from UTC−8 to UTC−7. The Tokyo–San Francisco gap goes from San Francisco 17 hours behind to San Francisco 16 hours behind.
24-hour comparison
One civil day in Tokyo, and the matching clock in San Francisco. Green means both cities are inside 09:00–18:00. Amber is the 07:00–22:00 compromise.
| Tokyo | San Francisco |
|---|---|
| 00:00 | previous day 08:00 |
| 01:00 | previous day 09:00 |
| 02:00 | previous day 10:00 |
| 03:00 | previous day 11:00 |
| 04:00 | previous day 12:00 |
| 05:00 | previous day 13:00 |
| 06:00 | previous day 14:00 |
| 07:00 | previous day 15:00 |
| 08:00 | previous day 16:00 |
| 09:00 | previous day 17:00 |
| 10:00 | previous day 18:00 |
| 11:00 | previous day 19:00 |
| 12:00 | previous day 20:00 |
| 13:00 | previous day 21:00 |
| 14:00 | previous day 22:00 |
| 15:00 | previous day 23:00 |
| 16:00 | 00:00 |
| 17:00 | 01:00 |
| 18:00 | 02:00 |
| 19:00 | 03:00 |
| 20:00 | 04:00 |
| 21:00 | 05:00 |
| 22:00 | 06:00 |
| 23:00 | 07:00 |
- Both cities 09:00–18:00
- 07:00–22:00 compromise
Best time for a meeting
Weekday 09:00–18:00 overlaps at Tokyo 09:00–10:00 (San Francisco previous day 17:00–18:00). Both sides stay inside a normal working day. Those hours are the green rows.
FAQ
- What is the time difference between Tokyo and San Francisco right now?
- They are 16 hours apart, with San Francisco behind Tokyo. Tokyo is UTC+9 and San Francisco is UTC−7 as of 2026年10月19日 Japan time.
- When it is noon in Tokyo, what time is it in San Francisco?
- Noon in Tokyo is previous day 20:00 in San Francisco.
- Does daylight saving change the difference?
- Tokyo stays at UTC+9 for at least the next year. Just after Nov 1, 2026 01:59 San Francisco time, the clock reads Nov 1, 2026 01:00 and the offset moves from UTC−7 to UTC−8. The Tokyo–San Francisco gap goes from San Francisco 16 hours behind to San Francisco 17 hours behind. Just after Mar 14, 2027 01:59 San Francisco time, the clock reads Mar 14, 2027 03:00 and the offset moves from UTC−8 to UTC−7. The Tokyo–San Francisco gap goes from San Francisco 17 hours behind to San Francisco 16 hours behind.
- What is the best time for a meeting between Tokyo and San Francisco?
- Weekday 09:00–18:00 overlaps at Tokyo 09:00–10:00 (San Francisco previous day 17:00–18:00). Both sides stay inside a normal working day. Those hours are the green rows.
- What is the difference from San Francisco back to Tokyo?
- Tokyo is 16 hours ahead of San Francisco. On Autoki, each person marks availability in their own city.