Rio de Janeiro to Crystal Lake, IL: time difference
Crystal Lake, 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 01:46 1:46 AM Crystal Lake, IL 23:46 11:46 PM You –:–
01:46 1:46 AM
Brasilia Standard Time · UTC-3
☀️ 05:15 · 🌙 18:01
23:46 11:46 PM
Central Daylight Time · UTC-5
☀️ 07:14 · 🌙 18:04
·
−2 h
Crystal Lake, IL is 2 h behind Rio de Janeiro.
When you, Rio de Janeiro and Crystal Lake, 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
🇺🇸 Crystal Lake, 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 | 🇺🇸 Crystal Lake, IL |
|---|---|---|
| Local time | 01:46 | 23:46 |
| 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 | 07:14 |
| Sunset | 18:01 | 18:04 |
| Daylight | 12 h 45 min | 10 h 50 min |
| People on this clock | 6,211,223 | 40,269 |
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 Crystal Lake, IL: common questions
How many hours behind Rio de Janeiro is Crystal Lake, IL?
The clocks in Crystal Lake are 2 hours behind those in Rio de Janeiro (UTC−5 and UTC−3).
What time is it in Crystal Lake, IL, at the start of the working day in Rio de Janeiro?
The working day in Rio de Janeiro starts at 9:00 AM; in Crystal Lake it is 7:00 AM at that moment.
If it is 6:00 PM in Rio de Janeiro, what time is it in Crystal Lake, IL?
At 6:00 PM in Rio de Janeiro, clocks in Crystal Lake show 4:00 PM.
Is there a time when both Rio de Janeiro and Crystal Lake, 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 Crystal Lake), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Crystal Lake, IL, compared with Rio de Janeiro?
The new day starts in Crystal Lake later: until 2:00 AM in Rio de Janeiro, it is still the previous day there. From 10:00 PM in Crystal Lake, Rio de Janeiro is already on the next day.
Is the time difference between Rio de Janeiro and Crystal Lake, IL, the same all year?
No. Only Crystal Lake switches to summer time, so the gap changes twice a year. From November 1, 2026, Crystal Lake will be 3 hours behind Rio de Janeiro.
