Costa Mesa to Beijing time converter

Beijing is 15 hours ahead of Costa Mesa. When it is 9:00 AM in Costa Mesa, it is 12:00 AM (Tue, Oct 20) in Beijing.

Costa Mesa PDT

Monday, October 19, 2026

Beijing CST

Monday, October 19, 2026

Costa Mesa
California, United States
Mon, Oct 19
PDTUTC-7
Beijing
China
Mon, Oct 19
CSTUTC+8+15h
Finding your time zone…
Shared working hours (9:00–18:00)

Costa Mesa to Beijing conversion table

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

Costa MesaBeijing
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 Beijing): 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 Beijing switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: +15h
  • Nov 1, 2026 – Mar 14, 2027: +16h
  • Mar 14, 2027 – Oct 19, 2027: +15h

Distance

Costa Mesa and Beijing are 10,117 km (6,286 miles) apart in a straight line.

More conversions

Beijing 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 BeijingLondon to BeijingLos Angeles to BeijingChicago to BeijingToronto to BeijingSão Paulo to BeijingParis to BeijingBerlin to BeijingMoscow to BeijingDubai to BeijingNew Delhi to BeijingBangkok to Beijing

Questions and answers

What is the time difference between Costa Mesa and Beijing?

Beijing is 15 hours ahead of Costa Mesa.

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

When it is 9:00 AM in Costa Mesa, it is 12:00 AM (Tue, Oct 20) in Beijing.

When is the best time to call Beijing 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 Beijing): working hours on one side, early or late on the other.

Does the time difference between Costa Mesa and Beijing change?

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