Rio de Janeiro to Fort Madison, IA: time difference
Fort Madison, IA is 2 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 15:05 3:05 PM Fort Madison, IA 13:05 1:05 PM You –:–
15:05 3:05 PM
Brasilia Standard Time · UTC-3
☀️ 05:17 · 🌙 18:00
13:05 1:05 PM
Central Daylight Time · UTC-5
☀️ 07:22 · 🌙 18:19
·
−2 h
Fort Madison, IA is 2 h behind Rio de Janeiro.
When you, Rio de Janeiro and Fort Madison, IA 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
🇺🇸 Fort Madison, IA
22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Rio de Janeiro | 🇺🇸 Fort Madison, IA |
|---|---|---|
| Local time | 15:05 | 13:05 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Brasilia Standard Time | Central Daylight Time |
| UTC offset | UTC-3 | UTC-5 |
| Offset from Rio de Janeiro | — | −2 h |
| IANA zone | America/Sao Paulo | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 05:17 | 07:22 |
| Sunset | 18:00 | 18:19 |
| Daylight | 12 h 43 min | 10 h 57 min |
| People on this clock | 6,211,223 | 10,270 |
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 Fort Madison, IA: common questions
How far behind Rio de Janeiro is Fort Madison, IA?
Fort Madison is 2 hours behind Rio de Janeiro: UTC−5 against UTC−3.
What time is it in Fort Madison, IA, at the start of the working day in Rio de Janeiro?
The working day in Rio de Janeiro starts at 9:00 AM; in Fort Madison it is 7:00 AM at that moment.
What time is it in Fort Madison, IA, at the end of the working day in Rio de Janeiro?
The working day in Rio de Janeiro ends at 6:00 PM; in Fort Madison it is 4:00 PM at that moment.
When do working hours in Rio de Janeiro and in Fort Madison, IA, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 11:00 AM to 6:00 PM in Rio de Janeiro, which is 9:00 AM to 4:00 PM in Fort Madison.
When does the date change in Fort Madison, IA, compared with Rio de Janeiro?
The new day starts in Fort Madison later: until 2:00 AM in Rio de Janeiro, it is still the previous day there. From 10:00 PM in Fort Madison, Rio de Janeiro is already on the next day.
Does the time difference between Rio de Janeiro and Fort Madison, IA, change?
Yes. The clocks change only in Fort Madison. From November 1, 2026, Fort Madison will be 3 hours behind Rio de Janeiro.
