Buenos Aires to St.Catharines: time difference
St.Catharines 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 03:48 3:48 AM St.Catharines 02:48 2:48 AM You –:–
03:48 3:48 AM
Argentina Standard Time · UTC-3
☀️ 06:05 · 🌙 19:13
02:48 2:48 AM
Eastern Daylight Time · UTC-4
☀️ 07:38 · 🌙 18:26
·
−1 h
St.Catharines is 1 h behind Buenos Aires.
When you, Buenos Aires and St.Catharines 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
🇨🇦 St.Catharines
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 | 🇨🇦 St.Catharines |
|---|---|---|
| Local time | 03:48 | 02:48 |
| 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 | 07:38 |
| Sunset | 19:13 | 18:26 |
| Daylight | 13 h 8 min | 10 h 48 min |
| People on this clock | 2,891,082 | 133,113 |
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 St.Catharines: common questions
How far behind Buenos Aires is St.Catharines?
St.Catharines 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 St.Catharines?
At 9:00 AM in Buenos Aires, clocks in St.Catharines show 8:00 AM.
What time is it in St.Catharines when it is 6:00 PM in Buenos Aires?
When it is 6:00 PM in Buenos Aires, it is 5:00 PM in St.Catharines.
Is there a time when both Buenos Aires and St.Catharines are at work?
Yes: from 10:00 AM to 6:00 PM in Buenos Aires (9:00 AM to 5:00 PM in St.Catharines), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in St.Catharines compared with Buenos Aires?
The new day starts in St.Catharines later: until 1:00 AM in Buenos Aires, it is still the previous day there. From 11:00 PM in St.Catharines, Buenos Aires is already on the next day.
Does the time difference between Buenos Aires and St.Catharines change?
Yes. The clocks change only in St.Catharines. From November 1, 2026, St.Catharines will be 2 hours behind Buenos Aires.
