Bourne, MA to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Bourne, 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.
Bourne, MA 07:47 7:47 AM Rio de Janeiro 08:47 8:47 AM You –:–
07:47 7:47 AM
Eastern Daylight Time · UTC-4
☀️ 06:49 · 🌙 18:11
08:47 8:47 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
·
+1 h
Rio de Janeiro is 1 h ahead of Bourne, MA.
When you, Bourne, 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
🇺🇸 Bourne, 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 | 🇺🇸 Bourne, MA | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 07:47 | 08:47 |
| 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 Bourne, 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 | 06:49 | 05:26 |
| Sunset | 18:11 | 17:55 |
| Daylight | 11 h 21 min | 12 h 30 min |
| People on this clock | 19,224 | 6,211,223 |
Compare Bourne, MA with another city
More comparisons with Bourne, MA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Bourne, MA and Rio de Janeiro: common questions
What is the time difference between Bourne, MA, and Rio de Janeiro?
Rio de Janeiro is 1 hour ahead: it uses UTC−3, while Bourne is on UTC−4.
What time is it in Rio de Janeiro at the start of the working day in Bourne, MA?
The working day in Bourne starts at 9:00 AM; in Rio de Janeiro it is 10:00 AM at that moment.
If it is 6:00 PM in Bourne, MA, what time is it in Rio de Janeiro?
At 6:00 PM in Bourne, clocks in Rio de Janeiro show 7:00 PM.
When do working hours in Bourne, MA, and in Rio de Janeiro overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Bourne, which is 10:00 AM to 6:00 PM in Rio de Janeiro.
When is it already the next day in Rio de Janeiro?
From 11:00 PM in Bourne, MA, it is already the next day in Rio de Janeiro. The other way round, until 1:00 AM in Rio de Janeiro it is still the previous day in Bourne.
Is the time difference between Bourne, MA, and Rio de Janeiro the same all year?
No. Only Bourne switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Bourne.
