Mundelein, IL to Rio de Janeiro: time difference
Rio de Janeiro is 2 h ahead of Mundelein, 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.
Mundelein, IL 23:47 11:47 PM Rio de Janeiro 01:47 1:47 AM You –:–
23:47 11:47 PM
Central Daylight Time · UTC-5
☀️ 07:12 · 🌙 18:02
01:47 1:47 AM
Brasilia Standard Time · UTC-3
☀️ 05:15 · 🌙 18:01
·
+2 h
Rio de Janeiro is 2 h ahead of Mundelein, IL.
When you, Mundelein, 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
🇺🇸 Mundelein, 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
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Time zones side by side
| Detail | 🇺🇸 Mundelein, IL | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 23:47 | 01:47 |
| Local date | Wednesday, October 21, 2026 | Thursday, October 22, 2026 |
| Time zone | Central Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-5 | UTC-3 |
| Offset from Mundelein, IL | — | +2 h |
| IANA zone | America/Chicago | America/Sao Paulo |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:12 | 05:15 |
| Sunset | 18:02 | 18:01 |
| Daylight | 10 h 50 min | 12 h 45 min |
| People on this clock | 31,560 | 6,211,223 |
Compare Mundelein, IL with another city
More comparisons with Mundelein, IL: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Mundelein, IL and Rio de Janeiro: common questions
How many hours ahead of Mundelein, IL, is Rio de Janeiro?
The clocks in Rio de Janeiro are 2 hours ahead of those in Mundelein (UTC−3 and UTC−5).
If it is 9:00 AM in Mundelein, IL, what time is it in Rio de Janeiro?
At 9:00 AM in Mundelein, clocks in Rio de Janeiro show 11:00 AM.
What time is it in Rio de Janeiro when it is 6:00 PM in Mundelein, IL?
When it is 6:00 PM in Mundelein, it is 8:00 PM in Rio de Janeiro.
When do working hours in Mundelein, IL, and in Rio de Janeiro overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 4:00 PM in Mundelein, which is 11:00 AM to 6:00 PM in Rio de Janeiro.
When does the date change in Rio de Janeiro compared with Mundelein, IL?
The new day starts in Rio de Janeiro earlier: at 10:00 PM in Mundelein it is already midnight there. Until 2:00 AM in Rio de Janeiro, Mundelein is still on the previous day.
Does the time gap between Mundelein, IL, and Rio de Janeiro change during the year?
Yes – daylight saving time is used in Mundelein but not in Rio de Janeiro. From November 1, 2026, Rio de Janeiro will be 3 hours ahead of Mundelein.
