Costa Mesa to Singapore time converter

Singapore is 15 hours ahead of Costa Mesa. When it is 9:00 AM in Costa Mesa, it is 12:00 AM (Wed, Oct 21) in Singapore.

Costa Mesa PDT

Tuesday, October 20, 2026

Singapore SGT

Wednesday, October 21, 2026

Costa Mesa
California, United States
Tue, Oct 20
PDTUTC-7
Singapore
Wed, Oct 21
SGTUTC+8+15h
Finding your time zone…
Shared working hours (9:00–18:00)

Costa Mesa to Singapore conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

The difference changes during the year because Costa Mesa and Singapore 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

Singapore to Costa MesaCosta Mesa to New YorkCosta Mesa to LondonCosta Mesa to Los AngelesCosta Mesa to ChicagoCosta Mesa to TorontoCosta Mesa to São PauloCosta Mesa to ParisCosta Mesa to BerlinCosta Mesa to MoscowCosta Mesa to DubaiCosta Mesa to New DelhiCosta Mesa to Bangkok
New York to SingaporeLondon to SingaporeLos Angeles to SingaporeChicago to SingaporeToronto to SingaporeSão Paulo to SingaporeParis to SingaporeBerlin to SingaporeMoscow to SingaporeDubai to SingaporeNew Delhi to SingaporeBangkok to Singapore

Questions and answers

What is the time difference between Costa Mesa and Singapore?

Singapore is 15 hours ahead of Costa Mesa.

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

When it is 9:00 AM in Costa Mesa, it is 12:00 AM (Wed, Oct 21) in Singapore.

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

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

Does the time difference between Costa Mesa and Singapore change?

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