Chicago, IL to Rio de Janeiro: time difference
Rio de Janeiro is 2 h ahead of Chicago, IL. 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.
Chicago, IL 20:59 8:59 PM Rio de Janeiro 22:59 10:59 PM You –:–
20:59 8:59 PM
Central Daylight Time · UTC-5
☀️ 06:57 · 🌙 18:20
22:59 10:59 PM
Brasilia Standard Time · UTC-3
☀️ 05:27 · 🌙 17:55
·
+2 h
Rio de Janeiro is 2 h ahead of Chicago, IL.
When you, Chicago, IL 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
🇺🇸 Chicago, IL
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
- Asleep
- Early
- Working hours
- Evening
- Both working
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Time zones side by side
| Detail | 🇺🇸 Chicago, IL | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 20:59 | 22:59 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 2026 |
| Time zone | Central Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-5 | UTC-3 |
| Offset from Chicago, IL | — | +2 h |
| IANA zone | America/Chicago | America/Sao Paulo |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 06:57 | 05:27 |
| Sunset | 18:20 | 17:55 |
| Daylight | 11 h 24 min | 12 h 28 min |
| People on this clock | 2,746,388 | 6,211,223 |
Compare Chicago, IL with another city
More comparisons with Chicago, IL: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Chicago, IL and Rio de Janeiro: common questions
What is the time difference between Chicago, IL, and Rio de Janeiro?
Rio de Janeiro is 2 hours ahead: it uses UTC−3, while Chicago is on UTC−5.
What time is it in Rio de Janeiro at the start of the working day in Chicago, IL?
The working day in Chicago starts at 9:00 AM; in Rio de Janeiro it is 11:00 AM at that moment.
What time is it in Rio de Janeiro when it is 6:00 PM in Chicago, IL?
When it is 6:00 PM in Chicago, it is 8:00 PM in Rio de Janeiro.
When is a good time to call Rio de Janeiro from Chicago, IL?
Between 9:00 AM and 4:00 PM in Chicago – that is 11:00 AM to 6:00 PM in Rio de Janeiro – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Rio de Janeiro compared with Chicago, IL?
The new day starts in Rio de Janeiro earlier: at 10:00 PM in Chicago it is already midnight there. Until 2:00 AM in Rio de Janeiro, Chicago is still on the previous day.
Does the time difference between Chicago, IL, and Rio de Janeiro change?
Yes. The clocks change only in Chicago. From November 1, 2026, Rio de Janeiro will be 3 hours ahead of Chicago.
