Buenos Aires to California time converter

California is 4 hours behind Buenos Aires. When it is 9:00 AM in Buenos Aires, it is 5:00 AM in California.

Buenos Aires ART

Wednesday, October 21, 2026

California PDT

Tuesday, October 20, 2026

Buenos Aires
Argentina
Wed, Oct 21
ARTUTC-3
California
United States
Tue, Oct 20
PDTUTC-7-4h
Finding your time zone…
Shared working hours (9:00–18:00)

Buenos Aires to California conversion table

Every hour of today in Buenos Aires and the matching time in California. Light rows are typical working hours (9:00–18:00).

Buenos AiresCalifornia
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 Buenos Aires (9:00 AM – 2:00 PM in California).

Daylight saving time and the difference

The difference changes during the year because Buenos Aires and California 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

More conversions

California to Buenos AiresBuenos Aires to New YorkBuenos Aires to LondonBuenos Aires to Los AngelesBuenos Aires to ChicagoBuenos Aires to TorontoBuenos Aires to São PauloBuenos Aires to ParisBuenos Aires to BerlinBuenos Aires to MoscowBuenos Aires to DubaiBuenos Aires to New DelhiBuenos Aires to Bangkok
New York to CaliforniaLondon to CaliforniaLos Angeles to CaliforniaChicago to CaliforniaToronto to CaliforniaSão Paulo to CaliforniaParis to CaliforniaBerlin to CaliforniaMoscow to CaliforniaDubai to CaliforniaNew Delhi to CaliforniaBangkok to California

Questions and answers

What is the time difference between Buenos Aires and California?

California is 4 hours behind Buenos Aires.

What time is it in California when it is 9 AM in Buenos Aires?

When it is 9:00 AM in Buenos Aires, it is 5:00 AM in California.

When is the best time to call California from Buenos Aires?

Both sides are at work from 1:00 PM – 6:00 PM in Buenos Aires (9:00 AM – 2:00 PM in California).

Does the time difference between Buenos Aires and California change?

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