Buenos Aires to Diamond Bar time converter

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

Buenos Aires ART

Tuesday, October 20, 2026

Diamond Bar PDT

Tuesday, October 20, 2026

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

4:10 PM in Buenos Aires, Tuesday, October 20, 2026

Shared working hours (9:00–18:00)

Buenos Aires to Diamond Bar conversion table

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

Buenos AiresDiamond Bar
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 Diamond Bar).

Daylight saving time and the difference

The difference changes during the year because Buenos Aires and Diamond Bar switch clocks on different dates:

  • Oct 20, 2026 – Nov 1, 2026: -4h
  • Nov 1, 2026 – Mar 14, 2027: -5h
  • Mar 14, 2027 – Oct 20, 2027: -4h

Distance

Buenos Aires and Diamond Bar are 9,823 km (6,104 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Buenos Aires and Diamond Bar?

Diamond Bar is 4 hours behind Buenos Aires.

What time is it in Diamond Bar when it is 9 AM in Buenos Aires?

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

When is the best time to call Diamond Bar 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 Diamond Bar).

Does the time difference between Buenos Aires and Diamond Bar change?

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