
Exact time synced with atomic clocks (IANA + NTP)
Sunday, July 5, 2026
United States · America/Los_Angeles · PDT
San Francisco is 16h behind Tokyo

Exact time synced with atomic clocks (IANA + NTP)
Sunday, July 5, 2026
United States · America/Los_Angeles · PDT

Exact time synced with atomic clocks (IANA + NTP)
Sunday, July 5, 2026
Japan · Asia/Tokyo · GMT+9
If you are scheduling a call between San Francisco and Tokyo, there is very limited or no overlap in normal business hours. Consider early-morning or late-evening calls for one side, or use async communication.
Scheduling a family call between San Francisco and Tokyo takes a little planning. San Francisco is 16 hours behind Tokyo, which means there's no window that feels comfortable for everyone at the same time. The most manageable option is early evening in San Francisco — around 7 pm — which puts Tokyo at 11 am. Someone will need to stretch a little, but at least no one's setting a middle-of-the-night alarm. Weekends tend to give the most flexibility if you can agree on a time in advance.
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