São Paulo to Costa Mesa time converter

Costa Mesa is 4 hours behind São Paulo. When it is 9:00 AM in São Paulo, it is 5:00 AM in Costa Mesa.

São Paulo BRT

Wednesday, October 21, 2026

Costa Mesa PDT

Tuesday, October 20, 2026

Wed, Oct 21
BRTUTC-3
California, United States
Tue, Oct 20
PDTUTC-7-4h
Finding your time zone…

2:49 AM in São Paulo, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

São Paulo to Costa Mesa conversion table

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

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

Best time to call or meet

Both sides are at work from 1:00 PM – 6:00 PM in São Paulo (9:00 AM – 2:00 PM in Costa Mesa).

Daylight saving time and the difference

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

  • Oct 21, 2026 – Nov 1, 2026: -4h
  • Nov 1, 2026 – Mar 14, 2027: -5h
  • Mar 14, 2027 – Oct 21, 2027: -4h

Distance

São Paulo and Costa Mesa are 9,857 km (6,125 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between São Paulo and Costa Mesa?

Costa Mesa is 4 hours behind São Paulo.

What time is it in Costa Mesa when it is 9 AM in São Paulo?

When it is 9:00 AM in São Paulo, it is 5:00 AM in Costa Mesa.

When is the best time to call Costa Mesa from São Paulo?

Both sides are at work from 1:00 PM – 6:00 PM in São Paulo (9:00 AM – 2:00 PM in Costa Mesa).

Does the time difference between São Paulo 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.