Tokyo to San Mateo time converter

San Mateo is 16 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 5:00 PM (Wed, Oct 21) in San Mateo.

Tokyo JST

Thursday, October 22, 2026

San Mateo PDT

Wednesday, October 21, 2026

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

Tokyo to San Mateo conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 22, 2026 – Nov 1, 2026: -16h
  • Nov 1, 2026 – Mar 14, 2027: -17h
  • Mar 14, 2027 – Oct 22, 2027: -16h

Distance

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

More conversions

San Mateo to TokyoTokyo to New YorkTokyo to LondonTokyo to Los AngelesTokyo to ChicagoTokyo to TorontoTokyo to São PauloTokyo to ParisTokyo to BerlinTokyo to MoscowTokyo to DubaiTokyo to New DelhiTokyo to Bangkok
New York to San MateoLondon to San MateoLos Angeles to San MateoChicago to San MateoToronto to San MateoSão Paulo to San MateoParis to San MateoBerlin to San MateoMoscow to San MateoDubai to San MateoNew Delhi to San MateoBangkok to San Mateo

Questions and answers

What is the time difference between Tokyo and San Mateo?

San Mateo is 16 hours behind Tokyo.

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

When it is 9:00 AM in Tokyo, it is 5:00 PM (Wed, Oct 21) in San Mateo.

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

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

Does the time difference between Tokyo and San Mateo change?

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