Sao Paulo to Waterloo: time difference
Waterloo is 1 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 22:40 10:40 PM Waterloo 21:40 9:40 PM You –:–
22:40 10:40 PM
Brasilia Standard Time · UTC-3
☀️ 05:40 · 🌙 18:09
21:40 9:40 PM
Eastern Daylight Time · UTC-4
☀️ 07:29 · 🌙 18:51
·
−1 h
Waterloo is 1 h behind Sao Paulo.
When you, Sao Paulo and Waterloo 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
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 22 10 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Sao Paulo | 🇨🇦 Waterloo |
|---|---|---|
| Local time | 22:40 | 21:40 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 2026 |
| Time zone | Brasilia Standard Time | Eastern Daylight Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Sao Paulo | — | −1 h |
| IANA zone | America/Sao Paulo | America/Toronto |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 05:40 | 07:29 |
| Sunset | 18:09 | 18:51 |
| Daylight | 12 h 29 min | 11 h 21 min |
| People on this clock | 11,451,999 | 121,436 |
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: common questions
How far behind Sao Paulo is Waterloo?
Waterloo is 1 hour behind Sao Paulo: UTC−4 against UTC−3.
What time is it in Waterloo when it is 9:00 AM in Sao Paulo?
When it is 9:00 AM in Sao Paulo, it is 8:00 AM in Waterloo.
What time is it in Waterloo at the end of the working day in Sao Paulo?
The working day in Sao Paulo ends at 6:00 PM; in Waterloo it is 5:00 PM at that moment.
When is a good time to call Waterloo from Sao Paulo?
Between 10:00 AM and 6:00 PM in Sao Paulo – that is 9:00 AM to 5:00 PM in Waterloo – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Sao Paulo is it still yesterday in Waterloo?
Before 1:00 AM in Sao Paulo, the date in Waterloo has not changed yet. From 11:00 PM in Waterloo, it is already the next day in Sao Paulo.
Is the time difference between Sao Paulo and Waterloo 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 2 hours behind Sao Paulo.
