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Time difference between San Francisco and Tokyo

Tokyo is 16 hours ahead of San Francisco

Right now

San Francisco
09:38
PDT · UTC-7
Tokyo
01:38
JST · UTC+9

Open this pair in the planner

Best time for a call between San Francisco and Tokyo

Hours highlighted in green work for everyone on the list.

  • 16:00 San Francisco 08:00 Tokyo
  • 17:00 San Francisco 09:00 Tokyo
  • 15:00 San Francisco 07:00 Tokyo

Hour by hour: San Francisco to Tokyo

Working hours are shaded. The rows marked with a star are the ones we recommend for a call.

San Francisco (reference) Tokyo
00:00 16:00
01:00 17:00
02:00 18:00
03:00 19:00
04:00 20:00
05:00 21:00
06:00 22:00
07:00 23:00
08:00 00:00 (next day)
09:00 01:00 (next day)
10:00 02:00 (next day)
11:00 03:00 (next day)
12:00 04:00 (next day)
13:00 05:00 (next day)
14:00 06:00 (next day)
★ 15:00 07:00 (next day)
★ 16:00 08:00 (next day)
★ 17:00 09:00 (next day)
18:00 10:00 (next day)
19:00 11:00 (next day)
20:00 12:00 (next day)
21:00 13:00 (next day)
22:00 14:00 (next day)
23:00 15:00 (next day)

Table built for August 26, 2026. The live values above update in your browser.

Daylight saving time

San Francisco changes its clocks and Tokyo does not, so the difference between them is not the same all year.

Frequently asked questions

What is the time difference between San Francisco and Tokyo?

Tokyo is 16 hours ahead of San Francisco

What is the best time to call between San Francisco and Tokyo?

The most convenient slot is 16:00 San Francisco / 08:00 Tokyo. That keeps the call inside working hours in both cities.

Does the difference between San Francisco and Tokyo change during the year?

San Francisco changes its clocks and Tokyo does not, so the difference between them is not the same all year.

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