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
11:10 PM in Rio de Janeiro, Wednesday, October 21, 2026
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 Janeiro | Cambridge |
|---|---|
| 12:00 AM | 11:00 PM−1 day |
| 1:00 AM | 12:00 AM |
| 2:00 AM | 1:00 AM |
| 3:00 AM | 2:00 AM |
| 4:00 AM | 3:00 AM |
| 5:00 AM | 4:00 AM |
| 6:00 AM | 5:00 AM |
| 7:00 AM | 6:00 AM |
| 8:00 AM | 7:00 AM |
| 9:00 AM | 8:00 AM |
| 10:00 AM | 9:00 AM |
| 11:00 AM | 10:00 AM |
| 12:00 PM | 11:00 AM |
| 1:00 PM | 12:00 PM |
| 2:00 PM | 1:00 PM |
| 3:00 PM | 2:00 PM |
| 4:00 PM | 3:00 PM |
| 5:00 PM | 4:00 PM |
| 6:00 PM | 5:00 PM |
| 7:00 PM | 6:00 PM |
| 8:00 PM | 7:00 PM |
| 9:00 PM | 8:00 PM |
| 10:00 PM | 9:00 PM |
| 11:00 PM | 10:00 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.