New Castle, DE to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of New Castle, DE. 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.
New Castle, DE 23:01 11:01 PM Rio de Janeiro 00:01 12:01 AM You –:–
23:01 11:01 PM
Eastern Daylight Time · UTC-4
☀️ 07:19 · 🌙 18:16
00:01 12:01 AM
Brasilia Standard Time · UTC-3
☀️ 05:15 · 🌙 18:01
·
+1 h
Rio de Janeiro is 1 h ahead of New Castle, DE.
When you, New Castle, DE 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
🇺🇸 New Castle, DE
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 | 🇺🇸 New Castle, DE | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 23:01 | 00:01 |
| Local date | Wednesday, October 21, 2026 | Thursday, October 22, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from New Castle, DE | — | +1 h |
| IANA zone | America/New York | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:19 | 05:15 |
| Sunset | 18:16 | 18:01 |
| Daylight | 10 h 57 min | 12 h 45 min |
| People on this clock | 21,926 | 6,211,223 |
Compare New Castle, DE with another city
More comparisons with New Castle, DE: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
New Castle, DE and Rio de Janeiro: common questions
How many hours ahead of New Castle, DE, is Rio de Janeiro?
The clocks in Rio de Janeiro are 1 hour ahead of those in New Castle (UTC−3 and UTC−4).
What time is it in Rio de Janeiro at the start of the working day in New Castle, DE?
The working day in New Castle starts at 9:00 AM; in Rio de Janeiro it is 10:00 AM at that moment.
What time is it in Rio de Janeiro when it is 6:00 PM in New Castle, DE?
When it is 6:00 PM in New Castle, it is 7:00 PM in Rio de Janeiro.
When is a good time to call Rio de Janeiro from New Castle, DE?
Between 9:00 AM and 5:00 PM in New Castle – 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).
When is it already the next day in Rio de Janeiro?
From 11:00 PM in New Castle, DE, 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 New Castle.
Is the time difference between New Castle, DE, and Rio de Janeiro the same all year?
No. Only New Castle switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of New Castle.
