Tokyo to Costa Mesa time converter

Costa Mesa is 16 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 5:00 PM (Sun, Oct 18) in Costa Mesa.

Tokyo JST

Monday, October 19, 2026

Costa Mesa PDT

Sunday, October 18, 2026

Tokyo
Japan
Mon, Oct 19
JSTUTC+9
Costa Mesa
California, United States
Sun, Oct 18
PDTUTC-7-16h
Finding your time zone…
Shared working hours (9:00–18:00)

Tokyo to Costa Mesa conversion table

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

TokyoCosta Mesa
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 Costa Mesa).

Daylight saving time and the difference

The difference changes during the year because Tokyo and Costa Mesa switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: -16h
  • Nov 1, 2026 – Mar 14, 2027: -17h
  • Mar 14, 2027 – Oct 19, 2027: -16h

Distance

Tokyo and Costa Mesa are 8,867 km (5,510 miles) apart in a straight line.

More conversions

Costa Mesa 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 Costa MesaLondon to Costa MesaLos Angeles to Costa MesaChicago to Costa MesaToronto to Costa MesaSão Paulo to Costa MesaParis to Costa MesaBerlin to Costa MesaMoscow to Costa MesaDubai to Costa MesaNew Delhi to Costa MesaBangkok to Costa Mesa

Questions and answers

What is the time difference between Tokyo and Costa Mesa?

Costa Mesa is 16 hours behind Tokyo.

What time is it in Costa Mesa when it is 9 AM in Tokyo?

When it is 9:00 AM in Tokyo, it is 5:00 PM (Sun, Oct 18) in Costa Mesa.

When is the best time to call Costa Mesa from Tokyo?

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

Does the time difference between Tokyo and Costa Mesa change?

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