San Mateo to Tokyo time converter

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

San Mateo PDT

Wednesday, October 21, 2026

Tokyo JST

Thursday, October 22, 2026

San Mateo
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)

San Mateo to Tokyo conversion table

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

San MateoTokyo
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 San Mateo (9:00 AM – 10:00 AM in Tokyo).

Daylight saving time and the difference

The difference changes during the year because San Mateo 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

San Mateo and Tokyo are 8,291 km (5,152 miles) apart in a straight line.

More conversions

Tokyo to San MateoSan Mateo to New YorkSan Mateo to LondonSan Mateo to Los AngelesSan Mateo to ChicagoSan Mateo to TorontoSan Mateo to São PauloSan Mateo to ParisSan Mateo to BerlinSan Mateo to MoscowSan Mateo to DubaiSan Mateo to New DelhiSan Mateo 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 San Mateo and Tokyo?

Tokyo is 16 hours ahead of San Mateo.

What time is it in Tokyo when it is 9 AM in San Mateo?

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

When is the best time to call Tokyo from San Mateo?

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

Does the time difference between San Mateo 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.