Middlesex, NJ to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Middlesex, NJ. 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.
Middlesex, NJ 10:40 10:40 AM Rio de Janeiro 11:40 11:40 AM You –:–
10:40 10:40 AM
Eastern Daylight Time · UTC-4
☀️ 07:05 · 🌙 18:26
11:40 11:40 AM
Brasilia Standard Time · UTC-3
☀️ 05:25 · 🌙 17:56
·
+1 h
Rio de Janeiro is 1 h ahead of Middlesex, NJ.
When you, Middlesex, NJ 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
🇺🇸 Middlesex, NJ
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 | 🇺🇸 Middlesex, NJ | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 10:40 | 11:40 |
| Local date | Sunday, October 11, 2026 | Sunday, October 11, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Middlesex, NJ | — | +1 h |
| IANA zone | America/New York | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:05 | 05:25 |
| Sunset | 18:26 | 17:56 |
| Daylight | 11 h 20 min | 12 h 31 min |
| People on this clock | 13,746 | 6,211,223 |
Compare Middlesex, NJ with another city
More comparisons with Middlesex, NJ: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Middlesex, NJ and Rio de Janeiro: common questions
How many hours ahead of Middlesex, NJ, is Rio de Janeiro?
The clocks in Rio de Janeiro are 1 hour ahead of those in Middlesex (UTC−3 and UTC−4).
What time is it in Rio de Janeiro when it is 9:00 AM in Middlesex, NJ?
When it is 9:00 AM in Middlesex, it is 10:00 AM in Rio de Janeiro.
What time is it in Rio de Janeiro when it is 6:00 PM in Middlesex, NJ?
When it is 6:00 PM in Middlesex, it is 7:00 PM in Rio de Janeiro.
Is there a time when both Middlesex, NJ, and Rio de Janeiro are at work?
Yes: from 9:00 AM to 5:00 PM in Middlesex (10:00 AM to 6:00 PM in Rio de Janeiro), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Rio de Janeiro compared with Middlesex, NJ?
The new day starts in Rio de Janeiro earlier: at 11:00 PM in Middlesex it is already midnight there. Until 1:00 AM in Rio de Janeiro, Middlesex is still on the previous day.
Is the time difference between Middlesex, NJ, and Rio de Janeiro the same all year?
No. Only Middlesex switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Middlesex.
