Johannesburg to Costa Mesa time converter

Costa Mesa is 9 hours behind Johannesburg. When it is 9:00 AM in Johannesburg, it is 12:00 AM in Costa Mesa.

Johannesburg SAST

Wednesday, October 21, 2026

Costa Mesa PDT

Wednesday, October 21, 2026

Johannesburg
South Africa
Wed, Oct 21
SASTUTC+2
Costa Mesa
California, United States
Wed, Oct 21
PDTUTC-7-9h
Finding your time zone…
Shared working hours (9:00–18:00)

Johannesburg to Costa Mesa conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 4:00 PM – 6:00 PM in Johannesburg (7:00 AM – 9:00 AM 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 Johannesburg and Costa Mesa switch clocks on different dates:

  • Oct 21, 2026 – Nov 1, 2026: -9h
  • Nov 1, 2026 – Mar 14, 2027: -10h
  • Mar 14, 2027 – Oct 21, 2027: -9h

Distance

Johannesburg and Costa Mesa are 16,649 km (10,345 miles) apart in a straight line.

More conversions

Costa Mesa to JohannesburgJohannesburg to New YorkJohannesburg to LondonJohannesburg to Los AngelesJohannesburg to ChicagoJohannesburg to TorontoJohannesburg to São PauloJohannesburg to ParisJohannesburg to BerlinJohannesburg to MoscowJohannesburg to DubaiJohannesburg to New DelhiJohannesburg 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 Johannesburg and Costa Mesa?

Costa Mesa is 9 hours behind Johannesburg.

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

When it is 9:00 AM in Johannesburg, it is 12:00 AM in Costa Mesa.

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

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

Does the time difference between Johannesburg 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.