Buenos Aires to Châteauguay, QC: time difference
Châteauguay, QC is 1 h behind Buenos Aires. 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.
Buenos Aires 02:00 2:00 AM Châteauguay, QC 01:00 1:00 AM You –:–
02:00 2:00 AM
Argentina Standard Time · UTC-3
☀️ 06:05 · 🌙 19:13
01:00 1:00 AM
Eastern Daylight Time · UTC-4
☀️ 07:20 · 🌙 18:01
·
−1 h
Châteauguay, QC is 1 h behind Buenos Aires.
When you, Buenos Aires and Châteauguay, QC are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇦🇷 Buenos Aires
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
🇨🇦 Châteauguay, QC
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 | 🇦🇷 Buenos Aires | 🇨🇦 Châteauguay, QC |
|---|---|---|
| Local time | 02:00 | 01:00 |
| Local date | Wednesday, October 21, 2026 | Wednesday, October 21, 2026 |
| Time zone | Argentina Standard Time | Eastern Daylight Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Buenos Aires | — | −1 h |
| IANA zone | America/Argentina/Buenos Aires | America/Toronto |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 06:05 | 07:20 |
| Sunset | 19:13 | 18:01 |
| Daylight | 13 h 8 min | 10 h 41 min |
| People on this clock | 2,891,082 | 42,786 |
Compare Buenos Aires with another city
More comparisons with Buenos Aires: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Buenos Aires and Châteauguay, QC: common questions
How far behind Buenos Aires is Châteauguay, QC?
Châteauguay is 1 hour behind Buenos Aires: UTC−4 against UTC−3.
If it is 9:00 AM in Buenos Aires, what time is it in Châteauguay, QC?
At 9:00 AM in Buenos Aires, clocks in Châteauguay show 8:00 AM.
What time is it in Châteauguay, QC, when it is 6:00 PM in Buenos Aires?
When it is 6:00 PM in Buenos Aires, it is 5:00 PM in Châteauguay.
Is there a time when both Buenos Aires and Châteauguay, QC, are at work?
Yes: from 10:00 AM to 6:00 PM in Buenos Aires (9:00 AM to 5:00 PM in Châteauguay), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Châteauguay, QC, compared with Buenos Aires?
The new day starts in Châteauguay later: until 1:00 AM in Buenos Aires, it is still the previous day there. From 11:00 PM in Châteauguay, Buenos Aires is already on the next day.
Does the time difference between Buenos Aires and Châteauguay, QC, change?
Yes. The clocks change only in Châteauguay. From November 1, 2026, Châteauguay will be 2 hours behind Buenos Aires.
