Rio de Janeiro to Key West, FL: time difference
Key West, FL 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 17:58 5:58 PM Key West, FL 16:58 4:58 PM You –:–
17:58 5:58 PM
Brasilia Standard Time · UTC-3
☀️ 05:19 · 🌙 17:58
16:58 4:58 PM
Eastern Daylight Time · UTC-4
☀️ 07:27 · 🌙 19:00
·
−1 h
Key West, FL is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Key West, FL 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
🇺🇸 Key West, FL
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 | 🇺🇸 Key West, FL |
|---|---|---|
| Local time | 17:58 | 16:58 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 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 | 05:19 | 07:27 |
| Sunset | 17:58 | 19:00 |
| Daylight | 12 h 39 min | 11 h 33 min |
| People on this clock | 6,211,223 | 24,684 |
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 Key West, FL: common questions
How far behind Rio de Janeiro is Key West, FL?
Key West is 1 hour behind Rio de Janeiro: UTC−4 against UTC−3.
What time is it in Key West, FL, when it is 9:00 AM in Rio de Janeiro?
When it is 9:00 AM in Rio de Janeiro, it is 8:00 AM in Key West.
If it is 6:00 PM in Rio de Janeiro, what time is it in Key West, FL?
At 6:00 PM in Rio de Janeiro, clocks in Key West show 5:00 PM.
When do working hours in Rio de Janeiro and in Key West, FL, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Rio de Janeiro, which is 9:00 AM to 5:00 PM in Key West.
When does the date change in Key West, FL, compared with Rio de Janeiro?
The new day starts in Key West later: until 1:00 AM in Rio de Janeiro, it is still the previous day there. From 11:00 PM in Key West, Rio de Janeiro is already on the next day.
Does the time difference between Rio de Janeiro and Key West, FL, change?
Yes. The clocks change only in Key West. From November 1, 2026, Key West will be 2 hours behind Rio de Janeiro.
