Rio de Janeiro to Danbury, CT: time difference
Danbury, CT is 1 h behind Rio de Janeiro. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Rio de Janeiro 04:15 4:15 AM Danbury, CT 03:15 3:15 AM You –:–
04:15 4:15 AM
Brasilia Standard Time · UTC-3
☀️ 05:18 · 🌙 17:59
03:15 3:15 AM
Eastern Daylight Time · UTC-4
☀️ 07:11 · 🌙 18:08
·
−1 h
Danbury, CT is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Danbury, CT are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇧🇷 Rio de Janeiro
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
🇺🇸 Danbury, CT
23 11 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Rio de Janeiro | 🇺🇸 Danbury, CT |
|---|---|---|
| Local time | 04:15 | 03:15 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Brasilia Standard Time | Eastern Daylight Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Rio de Janeiro | — | −1 h |
| IANA zone | America/Sao Paulo | America/New York |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 05:18 | 07:11 |
| Sunset | 17:59 | 18:08 |
| Daylight | 12 h 41 min | 10 h 58 min |
| People on this clock | 6,211,223 | 78,292 |
Compare Rio de Janeiro with another city
More comparisons with Rio de Janeiro: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Rio de Janeiro and Danbury, CT: common questions
How many hours behind Rio de Janeiro is Danbury, CT?
The clocks in Danbury are 1 hour behind those in Rio de Janeiro (UTC−4 and UTC−3).
If it is 9:00 AM in Rio de Janeiro, what time is it in Danbury, CT?
At 9:00 AM in Rio de Janeiro, clocks in Danbury show 8:00 AM.
What time is it in Danbury, CT, when it is 6:00 PM in Rio de Janeiro?
When it is 6:00 PM in Rio de Janeiro, it is 5:00 PM in Danbury.
Is there a time when both Rio de Janeiro and Danbury, CT, are at work?
Yes: from 10:00 AM to 6:00 PM in Rio de Janeiro (9:00 AM to 5:00 PM in Danbury), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in Danbury, CT?
Until 1:00 AM in Rio de Janeiro it is still the previous day in Danbury. The other way round, from 11:00 PM in Danbury it is already the next day in Rio de Janeiro.
Is the time difference between Rio de Janeiro and Danbury, CT, the same all year?
No. Only Danbury switches to summer time, so the gap changes twice a year. From November 1, 2026, Danbury will be 2 hours behind Rio de Janeiro.
