Cornwall, ON to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Cornwall, ON. Live clocks for both, the working hours they share, and how each one sits against your own time.
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Cornwall, ON 11:31 11:31 AM Buenos Aires 12:31 12:31 PM You –:–
11:31 11:31 AM
Eastern Daylight Time · UTC-4
☀️ 07:20 · 🌙 18:09
12:31 12:31 PM
Argentina Standard Time · UTC-3
☀️ 06:07 · 🌙 19:11
·
+1 h
Buenos Aires is 1 h ahead of Cornwall, ON.
When you, Cornwall, ON and Buenos Aires are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇦 Cornwall, ON
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
🇦🇷 Buenos Aires
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 0 12 AM
📍 Your time
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Time zones side by side
| Detail | 🇨🇦 Cornwall, ON | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 11:31 | 12:31 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Eastern Daylight Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Cornwall, ON | — | +1 h |
| IANA zone | America/Toronto | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:20 | 06:07 |
| Sunset | 18:09 | 19:11 |
| Daylight | 10 h 48 min | 13 h 4 min |
| People on this clock | 46,867 | 2,891,082 |
Compare Cornwall, ON with another city
More comparisons with Cornwall, ON: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Cornwall, ON and Buenos Aires: common questions
What is the time difference between Cornwall, ON, and Buenos Aires?
Buenos Aires is 1 hour ahead: it uses UTC−3, while Cornwall is on UTC−4.
What time is it in Buenos Aires at the start of the working day in Cornwall, ON?
The working day in Cornwall starts at 9:00 AM; in Buenos Aires it is 10:00 AM at that moment.
What time is it in Buenos Aires when it is 6:00 PM in Cornwall, ON?
When it is 6:00 PM in Cornwall, it is 7:00 PM in Buenos Aires.
When is a good time to call Buenos Aires from Cornwall, ON?
Between 9:00 AM and 5:00 PM in Cornwall – that is 10:00 AM to 6:00 PM in Buenos Aires – both places are within working hours (9:00 AM–6:00 PM).
From what time in Cornwall, ON, is it tomorrow in Buenos Aires?
Once it is 11:00 PM in Cornwall, the date in Buenos Aires has already changed. Until 1:00 AM in Buenos Aires, it is still the previous day in Cornwall.
Is the time difference between Cornwall, ON, and Buenos Aires the same all year?
No. Only Cornwall switches to summer time, so the gap changes twice a year. From November 1, 2026, Buenos Aires will be 2 hours ahead of Cornwall.
