Buenos Aires to Chula Vista time converter

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

Buenos Aires ART

Wednesday, October 21, 2026

Chula Vista PDT

Tuesday, October 20, 2026

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

12:37 AM in Buenos Aires, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

Buenos Aires to Chula Vista conversion table

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

Buenos AiresChula Vista
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 Chula Vista).

Daylight saving time and the difference

The difference changes during the year because Buenos Aires and Chula Vista 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

Buenos Aires and Chula Vista are 9,666 km (6,006 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Buenos Aires and Chula Vista?

Chula Vista is 4 hours behind Buenos Aires.

What time is it in Chula Vista when it is 9 AM in Buenos Aires?

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

When is the best time to call Chula Vista 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 Chula Vista).

Does the time difference between Buenos Aires and Chula Vista change?

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