🇧🇷 Rio de Janeiro, Brazil
42
- Brasilia Standard Time
- UTC-3
- Golden hour
☀️ 05:18 · 🌙 17:59 · 12 h 41 min
Rio de Janeiro to Waterloo, IA: time difference
Waterloo, IA 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 17:24 5:24 PM Waterloo, IA 15:24 3:24 PM You –:–
17:24 5:24 PM
Brasilia Standard Time · UTC-3
☀️ 05:18 · 🌙 17:59
15:24 3:24 PM
Central Daylight Time · UTC-5
☀️ 07:28 · 🌙 18:22
·
−2 h
Waterloo, IA is 2 h behind Rio de Janeiro.
When you, Rio de Janeiro and Waterloo, IA 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
🇺🇸 Waterloo, IA
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 | 🇺🇸 Waterloo, IA |
|---|---|---|
| Local time | 17:24 | 15:24 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 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 | 05:18 | 07:28 |
| Sunset | 17:59 | 18:22 |
| Daylight | 12 h 41 min | 10 h 55 min |
| People on this clock | 6,211,223 | 67,314 |
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 Waterloo, IA: common questions
How far behind Rio de Janeiro is Waterloo, IA?
Waterloo is 2 hours behind Rio de Janeiro: UTC−5 against UTC−3.
If it is 9:00 AM in Rio de Janeiro, what time is it in Waterloo, IA?
At 9:00 AM in Rio de Janeiro, clocks in Waterloo show 7:00 AM.
If it is 6:00 PM in Rio de Janeiro, what time is it in Waterloo, IA?
At 6:00 PM in Rio de Janeiro, clocks in Waterloo show 4:00 PM.
When is a good time to call Waterloo, IA, from Rio de Janeiro?
Between 11:00 AM and 6:00 PM in Rio de Janeiro – that is 9:00 AM to 4:00 PM in Waterloo – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Rio de Janeiro is it still yesterday in Waterloo, IA?
Before 2:00 AM in Rio de Janeiro, the date in Waterloo has not changed yet. From 10:00 PM in Waterloo, it is already the next day in Rio de Janeiro.
Is the time difference between Rio de Janeiro and Waterloo, IA, the same all year?
No. Only Waterloo switches to summer time, so the gap changes twice a year. From November 1, 2026, Waterloo will be 3 hours behind Rio de Janeiro.
