Buenos Aires to Fontana time converter

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

Buenos Aires ART

Tuesday, October 20, 2026

Fontana PDT

Tuesday, October 20, 2026

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

Buenos Aires to Fontana conversion table

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

Buenos AiresFontana
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 Fontana).

Daylight saving time and the difference

The difference changes during the year because Buenos Aires and Fontana 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 Fontana are 9,803 km (6,091 miles) apart in a straight line.

More conversions

Fontana 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 FontanaLondon to FontanaLos Angeles to FontanaChicago to FontanaToronto to FontanaSão Paulo to FontanaParis to FontanaBerlin to FontanaMoscow to FontanaDubai to FontanaNew Delhi to FontanaBangkok to Fontana

Questions and answers

What is the time difference between Buenos Aires and Fontana?

Fontana is 4 hours behind Buenos Aires.

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

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

When is the best time to call Fontana 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 Fontana).

Does the time difference between Buenos Aires and Fontana change?

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