Rio de Janeiro to Rancho Cucamonga time converter

Rancho Cucamonga is 4 hours behind Rio de Janeiro. When it is 9:00 AM in Rio de Janeiro, it is 5:00 AM in Rancho Cucamonga.

Rio de Janeiro BRT

Wednesday, October 21, 2026

Rancho Cucamonga PDT

Wednesday, October 21, 2026

Rio de Janeiro
Brazil
Wed, Oct 21
BRTUTC-3
Rancho Cucamonga
California, United States
Wed, Oct 21
PDTUTC-7-4h
Finding your time zone…
Shared working hours (9:00–18:00)

Rio de Janeiro to Rancho Cucamonga conversion table

Every hour of today in Rio de Janeiro and the matching time in Rancho Cucamonga. Light rows are typical working hours (9:00–18:00).

Rio de JaneiroRancho Cucamonga
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 Rio de Janeiro (9:00 AM – 2:00 PM in Rancho Cucamonga).

Daylight saving time and the difference

The difference changes during the year because Rio de Janeiro and Rancho Cucamonga 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

Rio de Janeiro and Rancho Cucamonga are 10,092 km (6,271 miles) apart in a straight line.

More conversions

Rancho Cucamonga to Rio de JaneiroRio de Janeiro to New YorkRio de Janeiro to LondonRio de Janeiro to Los AngelesRio de Janeiro to ChicagoRio de Janeiro to TorontoRio de Janeiro to São PauloRio de Janeiro to ParisRio de Janeiro to BerlinRio de Janeiro to MoscowRio de Janeiro to DubaiRio de Janeiro to New DelhiRio de Janeiro to Bangkok
New York to Rancho CucamongaLondon to Rancho CucamongaLos Angeles to Rancho CucamongaChicago to Rancho CucamongaToronto to Rancho CucamongaSão Paulo to Rancho CucamongaParis to Rancho CucamongaBerlin to Rancho CucamongaMoscow to Rancho CucamongaDubai to Rancho CucamongaNew Delhi to Rancho CucamongaBangkok to Rancho Cucamonga

Questions and answers

What is the time difference between Rio de Janeiro and Rancho Cucamonga?

Rancho Cucamonga is 4 hours behind Rio de Janeiro.

What time is it in Rancho Cucamonga when it is 9 AM in Rio de Janeiro?

When it is 9:00 AM in Rio de Janeiro, it is 5:00 AM in Rancho Cucamonga.

When is the best time to call Rancho Cucamonga from Rio de Janeiro?

Both sides are at work from 1:00 PM – 6:00 PM in Rio de Janeiro (9:00 AM – 2:00 PM in Rancho Cucamonga).

Does the time difference between Rio de Janeiro and Rancho Cucamonga change?

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