Rio de Janeiro to Casper time converter

Casper is 3 hours behind Rio de Janeiro. When it is 9:00 AM in Rio de Janeiro, it is 6:00 AM in Casper.

Rio de Janeiro BRT

Tuesday, October 20, 2026

Casper MDT

Tuesday, October 20, 2026

Rio de Janeiro
Brazil
Tue, Oct 20
BRTUTC-3
Casper
Wyoming, United States
Tue, Oct 20
MDTUTC-6-3h
Finding your time zone…
Shared working hours (9:00–18:00)

Rio de Janeiro to Casper conversion table

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

Rio de JaneiroCasper
12:00 AM9:00 PM−1 day
1:00 AM10:00 PM−1 day
2:00 AM11:00 PM−1 day
3:00 AM12:00 AM
4:00 AM1:00 AM
5:00 AM2:00 AM
6:00 AM3:00 AM
7:00 AM4:00 AM
8:00 AM5:00 AM
9:00 AM6:00 AM
10:00 AM7:00 AM
11:00 AM8:00 AM
12:00 PM9:00 AM
1:00 PM10:00 AM
2:00 PM11:00 AM
3:00 PM12:00 PM
4:00 PM1:00 PM
5:00 PM2:00 PM
6:00 PM3:00 PM
7:00 PM4:00 PM
8:00 PM5:00 PM
9:00 PM6:00 PM
10:00 PM7:00 PM
11:00 PM8:00 PM

Best time to call or meet

Both sides are at work from 12:00 PM – 6:00 PM in Rio de Janeiro (9:00 AM – 3:00 PM in Casper).

Daylight saving time and the difference

The difference changes during the year because Rio de Janeiro and Casper switch clocks on different dates:

  • Oct 20, 2026 – Nov 1, 2026: -3h
  • Nov 1, 2026 – Mar 14, 2027: -4h
  • Mar 14, 2027 – Oct 20, 2027: -3h

Distance

Rio de Janeiro and Casper are 9,750 km (6,058 miles) apart in a straight line.

More conversions

Casper 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 CasperLondon to CasperLos Angeles to CasperChicago to CasperToronto to CasperSão Paulo to CasperParis to CasperBerlin to CasperMoscow to CasperDubai to CasperNew Delhi to CasperBangkok to Casper

Questions and answers

What is the time difference between Rio de Janeiro and Casper?

Casper is 3 hours behind Rio de Janeiro.

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

When it is 9:00 AM in Rio de Janeiro, it is 6:00 AM in Casper.

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

Both sides are at work from 12:00 PM – 6:00 PM in Rio de Janeiro (9:00 AM – 3:00 PM in Casper).

Does the time difference between Rio de Janeiro and Casper change?

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