Newton, MA to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Newton, 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.
Newton, MA 09:12 9:12 AM Rio de Janeiro 10:12 10:12 AM You –:–
09:12 9:12 AM
Eastern Daylight Time · UTC-4
☀️ 07:02 · 🌙 18:00
10:12 10:12 AM
Brasilia Standard Time · UTC-3
☀️ 05:19 · 🌙 17:59
·
+1 h
Rio de Janeiro is 1 h ahead of Newton, MA.
When you, Newton, 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
🇺🇸 Newton, 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 | 🇺🇸 Newton, MA | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 09:12 | 10:12 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Newton, 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 | 07:02 | 05:19 |
| Sunset | 18:00 | 17:59 |
| Daylight | 10 h 58 min | 12 h 40 min |
| People on this clock | 85,146 | 6,211,223 |
Compare Newton, MA with another city
More comparisons with Newton, MA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Newton, MA and Rio de Janeiro: common questions
How far ahead of Newton, MA, is Rio de Janeiro?
Rio de Janeiro is 1 hour ahead of Newton: UTC−3 against UTC−4.
What time is it in Rio de Janeiro at the start of the working day in Newton, MA?
The working day in Newton starts at 9:00 AM; in Rio de Janeiro it is 10:00 AM at that moment.
If it is 6:00 PM in Newton, MA, what time is it in Rio de Janeiro?
At 6:00 PM in Newton, clocks in Rio de Janeiro show 7:00 PM.
When do working hours in Newton, 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 Newton, which is 10:00 AM to 6:00 PM in Rio de Janeiro.
From what time in Newton, MA, is it tomorrow in Rio de Janeiro?
Once it is 11:00 PM in Newton, the date in Rio de Janeiro has already changed. Until 1:00 AM in Rio de Janeiro, it is still the previous day in Newton.
Does the time difference between Newton, MA, and Rio de Janeiro change?
Yes. The clocks change only in Newton. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Newton.
