Sao Paulo to Waterloo, IA: time difference
Waterloo, IA is 2 h behind Sao Paulo. 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.
Sao Paulo 15:48 3:48 PM Waterloo, IA 13:48 1:48 PM You –:–
15:48 3:48 PM
Brasilia Standard Time · UTC-3
☀️ 05:31 · 🌙 18:13
13:48 1:48 PM
Central Daylight Time · UTC-5
☀️ 07:28 · 🌙 18:22
·
−2 h
Waterloo, IA is 2 h behind Sao Paulo.
When you, Sao Paulo 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
🇧🇷 Sao Paulo
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 | 🇧🇷 Sao Paulo | 🇺🇸 Waterloo, IA |
|---|---|---|
| Local time | 15:48 | 13:48 |
| 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 Sao Paulo | — | −2 h |
| IANA zone | America/Sao Paulo | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 05:31 | 07:28 |
| Sunset | 18:13 | 18:22 |
| Daylight | 12 h 43 min | 10 h 55 min |
| People on this clock | 11,451,999 | 67,314 |
Compare Sao Paulo with another city
More comparisons with Sao Paulo: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Sao Paulo and Waterloo, IA: common questions
What is the time difference between Sao Paulo and Waterloo, IA?
Waterloo is 2 hours behind: it uses UTC−5, while Sao Paulo is on UTC−3.
What time is it in Waterloo, IA, at the start of the working day in Sao Paulo?
The working day in Sao Paulo starts at 9:00 AM; in Waterloo it is 7:00 AM at that moment.
What time is it in Waterloo, IA, when it is 6:00 PM in Sao Paulo?
When it is 6:00 PM in Sao Paulo, it is 4:00 PM in Waterloo.
When do working hours in Sao Paulo and in Waterloo, IA, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 11:00 AM to 6:00 PM in Sao Paulo, which is 9:00 AM to 4:00 PM in Waterloo.
When does the date change in Waterloo, IA, compared with Sao Paulo?
The new day starts in Waterloo later: until 2:00 AM in Sao Paulo, it is still the previous day there. From 10:00 PM in Waterloo, Sao Paulo is already on the next day.
Does the time gap between Sao Paulo and Waterloo, IA, change during the year?
Yes – daylight saving time is used in Waterloo but not in Sao Paulo. From November 1, 2026, Waterloo will be 3 hours behind Sao Paulo.
