Rio de Janeiro to Ontario time converter

Ontario is 1 hour behind Rio de Janeiro. When it is 9:00 AM in Rio de Janeiro, it is 8:00 AM in Ontario.

Rio de Janeiro BRT

Wednesday, October 21, 2026

Ontario EDT

Wednesday, October 21, 2026

Rio de Janeiro
Brazil
Wed, Oct 21
BRTUTC-3
Ontario
Canada
Wed, Oct 21
EDTUTC-4-1h
Finding your time zone…
Shared working hours (9:00–18:00)

Rio de Janeiro to Ontario conversion table

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

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

Best time to call or meet

Both sides are at work from 10:00 AM – 6:00 PM in Rio de Janeiro (9:00 AM – 5:00 PM in Ontario).

Daylight saving time and the difference

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

  • Oct 21, 2026 – Nov 1, 2026: -1h
  • Nov 1, 2026 – Mar 14, 2027: -2h
  • Mar 14, 2027 – Oct 21, 2027: -1h

More conversions

Ontario 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 OntarioLondon to OntarioLos Angeles to OntarioChicago to OntarioToronto to OntarioSão Paulo to OntarioParis to OntarioBerlin to OntarioMoscow to OntarioDubai to OntarioNew Delhi to OntarioBangkok to Ontario

Questions and answers

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

Ontario is 1 hour behind Rio de Janeiro.

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

When it is 9:00 AM in Rio de Janeiro, it is 8:00 AM in Ontario.

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

Both sides are at work from 10:00 AM – 6:00 PM in Rio de Janeiro (9:00 AM – 5:00 PM in Ontario).

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

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