South San Francisco to Tokyo time converter

Tokyo is 16 hours ahead of South San Francisco. When it is 9:00 AM in South San Francisco, it is 1:00 AM (Thu, Oct 22) in Tokyo.

South San Francisco PDT

Wednesday, October 21, 2026

Tokyo JST

Thursday, October 22, 2026

South San Francisco
California, United States
Wed, Oct 21
PDTUTC-7
Tokyo
Japan
Thu, Oct 22
JSTUTC+9+16h
Finding your time zone…
Shared working hours (9:00–18:00)

South San Francisco to Tokyo conversion table

Every hour of today in South San Francisco and the matching time in Tokyo. Light rows are typical working hours (9:00–18:00).

South San FranciscoTokyo
12:00 AM4:00 PM
1:00 AM5:00 PM
2:00 AM6:00 PM
3:00 AM7:00 PM
4:00 AM8:00 PM
5:00 AM9:00 PM
6:00 AM10:00 PM
7:00 AM11:00 PM
8:00 AM12:00 AM+1 day
9:00 AM1:00 AM+1 day
10:00 AM2:00 AM+1 day
11:00 AM3:00 AM+1 day
12:00 PM4:00 AM+1 day
1:00 PM5:00 AM+1 day
2:00 PM6:00 AM+1 day
3:00 PM7:00 AM+1 day
4:00 PM8:00 AM+1 day
5:00 PM9:00 AM+1 day
6:00 PM10:00 AM+1 day
7:00 PM11:00 AM+1 day
8:00 PM12:00 PM+1 day
9:00 PM1:00 PM+1 day
10:00 PM2:00 PM+1 day
11:00 PM3:00 PM+1 day

Best time to call or meet

Both sides are at work from 5:00 PM – 6:00 PM in South San Francisco (9:00 AM – 10:00 AM in Tokyo).

Daylight saving time and the difference

The difference changes during the year because South San Francisco and Tokyo switch clocks on different dates:

  • Oct 21, 2026 – Nov 1, 2026: +16h
  • Nov 1, 2026 – Mar 14, 2027: +17h
  • Mar 14, 2027 – Oct 21, 2027: +16h

Distance

South San Francisco and Tokyo are 8,279 km (5,144 miles) apart in a straight line.

More conversions

Tokyo to South San FranciscoSouth San Francisco to New YorkSouth San Francisco to LondonSouth San Francisco to Los AngelesSouth San Francisco to ChicagoSouth San Francisco to TorontoSouth San Francisco to São PauloSouth San Francisco to ParisSouth San Francisco to BerlinSouth San Francisco to MoscowSouth San Francisco to DubaiSouth San Francisco to New DelhiSouth San Francisco to Bangkok
New York to TokyoLondon to TokyoLos Angeles to TokyoChicago to TokyoToronto to TokyoSão Paulo to TokyoParis to TokyoBerlin to TokyoMoscow to TokyoDubai to TokyoNew Delhi to TokyoBangkok to Tokyo

Questions and answers

What is the time difference between South San Francisco and Tokyo?

Tokyo is 16 hours ahead of South San Francisco.

What time is it in Tokyo when it is 9 AM in South San Francisco?

When it is 9:00 AM in South San Francisco, it is 1:00 AM (Thu, Oct 22) in Tokyo.

When is the best time to call Tokyo from South San Francisco?

Both sides are at work from 5:00 PM – 6:00 PM in South San Francisco (9:00 AM – 10:00 AM in Tokyo).

Does the time difference between South San Francisco and Tokyo change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.