Barnstable, MA to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Barnstable, MA. Live clocks for both, the working hours they share, and how each one sits against your own time.
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Barnstable, MA 09:45 9:45 AM Rio de Janeiro 10:45 10:45 AM You –:–
09:45 9:45 AM
Eastern Daylight Time · UTC-4
☀️ 06:48 · 🌙 18:10
10:45 10:45 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
·
+1 h
Rio de Janeiro is 1 h ahead of Barnstable, MA.
When you, Barnstable, MA and Rio de Janeiro are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Barnstable, MA
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇧🇷 Rio de Janeiro
1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Barnstable, MA | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 09:45 | 10:45 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Barnstable, MA | — | +1 h |
| IANA zone | America/New York | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 06:48 | 05:26 |
| Sunset | 18:10 | 17:55 |
| Daylight | 11 h 21 min | 12 h 30 min |
| People on this clock | 44,000 | 6,211,223 |
Compare Barnstable, MA with another city
More comparisons with Barnstable, MA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Barnstable, MA and Rio de Janeiro: common questions
How far ahead of Barnstable, MA, is Rio de Janeiro?
Rio de Janeiro is 1 hour ahead of Barnstable: UTC−3 against UTC−4.
If it is 9:00 AM in Barnstable, MA, what time is it in Rio de Janeiro?
At 9:00 AM in Barnstable, clocks in Rio de Janeiro show 10:00 AM.
If it is 6:00 PM in Barnstable, MA, what time is it in Rio de Janeiro?
At 6:00 PM in Barnstable, clocks in Rio de Janeiro show 7:00 PM.
When is a good time to call Rio de Janeiro from Barnstable, MA?
Between 9:00 AM and 5:00 PM in Barnstable – that is 10:00 AM to 6:00 PM in Rio de Janeiro – both places are within working hours (9:00 AM–6:00 PM).
From what time in Barnstable, MA, is it tomorrow in Rio de Janeiro?
Once it is 11:00 PM in Barnstable, the date in Rio de Janeiro has already changed. Until 1:00 AM in Rio de Janeiro, it is still the previous day in Barnstable.
Does the time gap between Barnstable, MA, and Rio de Janeiro change during the year?
Yes – daylight saving time is used in Barnstable but not in Rio de Janeiro. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Barnstable.
