West Caldwell, NJ to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of West Caldwell, 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.
West Caldwell, NJ 06:40 6:40 AM Rio de Janeiro 07:40 7:40 AM You –:–
06:40 6:40 AM
Eastern Daylight Time · UTC-4
☀️ 07:17 · 🌙 18:08
07:40 7:40 AM
Brasilia Standard Time · UTC-3
☀️ 05:15 · 🌙 18:01
·
+1 h
Rio de Janeiro is 1 h ahead of West Caldwell, NJ.
When you, West Caldwell, 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
🇺🇸 West Caldwell, 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 | 🇺🇸 West Caldwell, NJ | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 06:40 | 07:40 |
| Local date | Thursday, October 22, 2026 | Thursday, October 22, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from West Caldwell, 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 | 07:17 | 05:15 |
| Sunset | 18:08 | 18:01 |
| Daylight | 10 h 51 min | 12 h 45 min |
| People on this clock | 10,797 | 6,211,223 |
Compare West Caldwell, NJ with another city
More comparisons with West Caldwell, NJ: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
West Caldwell, NJ and Rio de Janeiro: common questions
What is the time difference between West Caldwell, NJ, and Rio de Janeiro?
Rio de Janeiro is 1 hour ahead: it uses UTC−3, while West Caldwell is on UTC−4.
If it is 9:00 AM in West Caldwell, NJ, what time is it in Rio de Janeiro?
At 9:00 AM in West Caldwell, clocks in Rio de Janeiro show 10:00 AM.
If it is 6:00 PM in West Caldwell, NJ, what time is it in Rio de Janeiro?
At 6:00 PM in West Caldwell, clocks in Rio de Janeiro show 7:00 PM.
Is there a time when both West Caldwell, NJ, and Rio de Janeiro are at work?
Yes: from 9:00 AM to 5:00 PM in West Caldwell (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 West Caldwell, NJ?
The new day starts in Rio de Janeiro earlier: at 11:00 PM in West Caldwell it is already midnight there. Until 1:00 AM in Rio de Janeiro, West Caldwell is still on the previous day.
Is the time difference between West Caldwell, NJ, and Rio de Janeiro the same all year?
No. Only West Caldwell switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of West Caldwell.
