Cambridge to Rio de Janeiro time converter
Rio de Janeiro is 1 hour ahead of Cambridge. When it is 9:00 AM in Cambridge, it is 10:00 AM in Rio de Janeiro.
Cambridge EDT
Wednesday, October 21, 2026
Rio de Janeiro BRT
Wednesday, October 21, 2026
6:11 PM in Cambridge, Wednesday, October 21, 2026
Cambridge to Rio de Janeiro conversion table
Every hour of today in Cambridge and the matching time in Rio de Janeiro. Light rows are typical working hours (9:00–18:00).
| Cambridge | Rio de Janeiro |
|---|---|
| 12:00 AM | 1:00 AM |
| 1:00 AM | 2:00 AM |
| 2:00 AM | 3:00 AM |
| 3:00 AM | 4:00 AM |
| 4:00 AM | 5:00 AM |
| 5:00 AM | 6:00 AM |
| 6:00 AM | 7:00 AM |
| 7:00 AM | 8:00 AM |
| 8:00 AM | 9:00 AM |
| 9:00 AM | 10:00 AM |
| 10:00 AM | 11:00 AM |
| 11:00 AM | 12:00 PM |
| 12:00 PM | 1:00 PM |
| 1:00 PM | 2:00 PM |
| 2:00 PM | 3:00 PM |
| 3:00 PM | 4:00 PM |
| 4:00 PM | 5:00 PM |
| 5:00 PM | 6:00 PM |
| 6:00 PM | 7:00 PM |
| 7:00 PM | 8:00 PM |
| 8:00 PM | 9:00 PM |
| 9:00 PM | 10:00 PM |
| 10:00 PM | 11:00 PM |
| 11:00 PM | 12:00 AM+1 day |
Best time to call or meet
Both sides are at work from 9:00 AM – 5:00 PM in Cambridge (10:00 AM – 6:00 PM in Rio de Janeiro).
Daylight saving time and the difference
The difference changes during the year because Cambridge and Rio de Janeiro 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
Cambridge and Rio de Janeiro are 8,288 km (5,150 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Cambridge and Rio de Janeiro?
Rio de Janeiro is 1 hour ahead of Cambridge.
What time is it in Rio de Janeiro when it is 9 AM in Cambridge?
When it is 9:00 AM in Cambridge, it is 10:00 AM in Rio de Janeiro.
When is the best time to call Rio de Janeiro from Cambridge?
Both sides are at work from 9:00 AM – 5:00 PM in Cambridge (10:00 AM – 6:00 PM in Rio de Janeiro).
Does the time difference between Cambridge and Rio de Janeiro change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.