Fort Madison, IA to Rio de Janeiro: time difference
Rio de Janeiro is 2 h ahead of Fort Madison, IA. Live clocks for both, the working hours they share, and how each one sits against your own time.
+2 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Fort Madison, IA 10:36 10:36 AM Rio de Janeiro 12:36 12:36 PM You –:–
10:36 10:36 AM
Central Daylight Time · UTC-5
☀️ 07:22 · 🌙 18:19
12:36 12:36 PM
Brasilia Standard Time · UTC-3
☀️ 05:17 · 🌙 18:00
·
+2 h
Rio de Janeiro is 2 h ahead of Fort Madison, IA.
When you, Fort Madison, IA 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
🇺🇸 Fort Madison, IA
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
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 1 1 AM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Fort Madison, IA | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 10:36 | 12:36 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Central Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-5 | UTC-3 |
| Offset from Fort Madison, IA | — | +2 h |
| IANA zone | America/Chicago | America/Sao Paulo |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:22 | 05:17 |
| Sunset | 18:19 | 18:00 |
| Daylight | 10 h 57 min | 12 h 43 min |
| People on this clock | 10,270 | 6,211,223 |
Compare Fort Madison, IA with another city
More comparisons with Fort Madison, IA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Fort Madison, IA and Rio de Janeiro: common questions
How far ahead of Fort Madison, IA, is Rio de Janeiro?
Rio de Janeiro is 2 hours ahead of Fort Madison: UTC−3 against UTC−5.
If it is 9:00 AM in Fort Madison, IA, what time is it in Rio de Janeiro?
At 9:00 AM in Fort Madison, clocks in Rio de Janeiro show 11:00 AM.
If it is 6:00 PM in Fort Madison, IA, what time is it in Rio de Janeiro?
At 6:00 PM in Fort Madison, clocks in Rio de Janeiro show 8:00 PM.
When do working hours in Fort Madison, IA, and in Rio de Janeiro overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 4:00 PM in Fort Madison, which is 11:00 AM to 6:00 PM in Rio de Janeiro.
When is it already the next day in Rio de Janeiro?
From 10:00 PM in Fort Madison, IA, it is already the next day in Rio de Janeiro. The other way round, until 2:00 AM in Rio de Janeiro it is still the previous day in Fort Madison.
Does the time gap between Fort Madison, IA, and Rio de Janeiro change during the year?
Yes – daylight saving time is used in Fort Madison but not in Rio de Janeiro. From November 1, 2026, Rio de Janeiro will be 3 hours ahead of Fort Madison.
