Rio de Janeiro to Fort Atkinson, WI: time difference
Fort Atkinson, WI 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 01:42 1:42 AM Fort Atkinson, WI 23:42 11:42 PM You –:–
01:42 1:42 AM
Brasilia Standard Time · UTC-3
☀️ 05:15 · 🌙 18:01
23:42 11:42 PM
Central Daylight Time · UTC-5
☀️ 07:17 · 🌙 18:05
·
−2 h
Fort Atkinson, WI is 2 h behind Rio de Janeiro.
When you, Rio de Janeiro and Fort Atkinson, WI 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 Atkinson, WI
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
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Time zones side by side
| Detail | 🇧🇷 Rio de Janeiro | 🇺🇸 Fort Atkinson, WI |
|---|---|---|
| Local time | 01:42 | 23:42 |
| Local date | Thursday, October 22, 2026 | Wednesday, October 21, 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 | 05:15 | 07:17 |
| Sunset | 18:01 | 18:05 |
| Daylight | 12 h 45 min | 10 h 48 min |
| People on this clock | 6,211,223 | 12,500 |
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 Atkinson, WI: common questions
What is the time difference between Rio de Janeiro and Fort Atkinson, WI?
Fort Atkinson is 2 hours behind: it uses UTC−5, while Rio de Janeiro is on UTC−3.
If it is 9:00 AM in Rio de Janeiro, what time is it in Fort Atkinson, WI?
At 9:00 AM in Rio de Janeiro, clocks in Fort Atkinson show 7:00 AM.
What time is it in Fort Atkinson, WI, when it is 6:00 PM in Rio de Janeiro?
When it is 6:00 PM in Rio de Janeiro, it is 4:00 PM in Fort Atkinson.
When do working hours in Rio de Janeiro and in Fort Atkinson, WI, 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 Atkinson.
When does the date change in Fort Atkinson, WI, compared with Rio de Janeiro?
The new day starts in Fort Atkinson later: until 2:00 AM in Rio de Janeiro, it is still the previous day there. From 10:00 PM in Fort Atkinson, Rio de Janeiro is already on the next day.
Does the time difference between Rio de Janeiro and Fort Atkinson, WI, change?
Yes. The clocks change only in Fort Atkinson. From November 1, 2026, Fort Atkinson will be 3 hours behind Rio de Janeiro.
