Singapore to Costa Mesa time converter

Costa Mesa is 15 hours behind Singapore. When it is 9:00 AM in Singapore, it is 6:00 PM (Mon, Oct 19) in Costa Mesa.

Singapore SGT

Tuesday, October 20, 2026

Costa Mesa PDT

Tuesday, October 20, 2026

Singapore
Tue, Oct 20
SGTUTC+8
Costa Mesa
California, United States
Tue, Oct 20
PDTUTC-7-15h
Finding your time zone…
Shared working hours (9:00–18:00)

Singapore to Costa Mesa conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in Singapore (4:00 PM – 6:00 PM in Costa Mesa): working hours on one side, early or late on the other.

Daylight saving time and the difference

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

  • Oct 20, 2026 – Nov 1, 2026: -15h
  • Nov 1, 2026 – Mar 14, 2027: -16h
  • Mar 14, 2027 – Oct 20, 2027: -15h

More conversions

Costa Mesa to SingaporeSingapore to New YorkSingapore to LondonSingapore to Los AngelesSingapore to ChicagoSingapore to TorontoSingapore to São PauloSingapore to ParisSingapore to BerlinSingapore to MoscowSingapore to DubaiSingapore to New DelhiSingapore 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 Singapore and Costa Mesa?

Costa Mesa is 15 hours behind Singapore.

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

When it is 9:00 AM in Singapore, it is 6:00 PM (Mon, Oct 19) in Costa Mesa.

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

Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in Singapore (4:00 PM – 6:00 PM in Costa Mesa): working hours on one side, early or late on the other.

Does the time difference between Singapore 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.