Rio de Janeiro to Cambridge time converter

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

Rio de Janeiro BRT

Wednesday, October 21, 2026

Cambridge EDT

Wednesday, October 21, 2026

Wed, Oct 21
BRTUTC-3
Ontario, Canada
Wed, Oct 21
EDTUTC-4-1h
Finding your time zone…

11:10 PM in Rio de Janeiro, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

Rio de Janeiro to Cambridge conversion table

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

Rio de JaneiroCambridge
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 Cambridge).

Daylight saving time and the difference

The difference changes during the year because Rio de Janeiro and Cambridge 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

Distance

Rio de Janeiro and Cambridge are 8,288 km (5,150 miles) apart in a straight line.

More conversions

Questions and answers

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

Cambridge is 1 hour behind Rio de Janeiro.

What time is it in Cambridge 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 Cambridge.

When is the best time to call Cambridge 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 Cambridge).

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

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