San Francisco to Tokyo Time Difference
Tokyo is 16 hours ahead of San Francisco
24-Hour Comparison
Business hours Extended Off hours
San Francisco
09p
10p
11p
12a
01a
02a
03a
04a
05a
06a
07a
08a
09a
10a
11a
12p
01p
02p
03p
04p
05p
06p
07p
08p
Tokyo
01p
02p
03p
04p
05p
06p
07p
08p
09p
10p
11p
12a
01a
02a
03a
04a
05a
06a
07a
08a
09a
10a
11a
12p
Each column is the same moment in both cities, starting from right now and rolling forward 24 hours — daylight saving is already accounted for.
Best Time to Call
On a typical weekday (Monday–Friday).
San Francisco and Tokyo have little to no overlap in typical business hours (9 AM–5 PM) — an early morning or evening call works best for one side.
Frequently Asked Questions
- What is the time difference between San Francisco and Tokyo?
- Tokyo is 16 hours ahead of San Francisco. San Francisco is currently UTC-7 and Tokyo is UTC+9.
- Is Tokyo ahead of or behind San Francisco?
- Tokyo is ahead of San Francisco.
- What is the best time to call Tokyo from San Francisco?
- San Francisco and Tokyo have little to no overlap in typical business hours (9 AM–5 PM), even on a weekday — an early morning or evening call works best for one side.
- Does the time difference between San Francisco and Tokyo change during the year?
- Yes. San Francisco and Tokyo don't switch to daylight saving time on the same schedule, so the offset shifts by up to an hour for part of the year.