Rio de Janeiro to Rock Island, IL: time difference
Rock Island, IL 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 20:34 8:34 PM Rock Island, IL 18:34 6:34 PM You –:–
20:34 8:34 PM
Brasilia Standard Time · UTC-3
☀️ 05:17 · 🌙 18:00
18:34 6:34 PM
Central Daylight Time · UTC-5
☀️ 07:20 · 🌙 18:15
·
−2 h
Rock Island, IL is 2 h behind Rio de Janeiro.
When you, Rio de Janeiro and Rock Island, IL 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
🇺🇸 Rock Island, IL
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 | 🇺🇸 Rock Island, IL |
|---|---|---|
| Local time | 20:34 | 18:34 |
| 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 | 07:20 |
| Sunset | 18:00 | 18:15 |
| Daylight | 12 h 43 min | 10 h 55 min |
| People on this clock | 6,211,223 | 37,108 |
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 Rock Island, IL: common questions
How many hours behind Rio de Janeiro is Rock Island, IL?
The clocks in Rock Island are 2 hours behind those in Rio de Janeiro (UTC−5 and UTC−3).
What time is it in Rock Island, IL, when it is 9:00 AM in Rio de Janeiro?
When it is 9:00 AM in Rio de Janeiro, it is 7:00 AM in Rock Island.
What time is it in Rock Island, IL, 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 Rock Island.
Is there a time when both Rio de Janeiro and Rock Island, IL, are at work?
Yes: from 11:00 AM to 6:00 PM in Rio de Janeiro (9:00 AM to 4:00 PM in Rock Island), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Rock Island, IL, compared with Rio de Janeiro?
The new day starts in Rock Island later: until 2:00 AM in Rio de Janeiro, it is still the previous day there. From 10:00 PM in Rock Island, Rio de Janeiro is already on the next day.
Does the time difference between Rio de Janeiro and Rock Island, IL, change?
Yes. The clocks change only in Rock Island. From November 1, 2026, Rock Island will be 3 hours behind Rio de Janeiro.
