Buenos Aires to Sarnia: time difference
Sarnia 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 22:27 10:27 PM Sarnia 21:27 9:27 PM You –:–
22:27 10:27 PM
Argentina Standard Time · UTC-3
☀️ 06:14 · 🌙 19:07
21:27 9:27 PM
Eastern Daylight Time · UTC-4
☀️ 07:42 · 🌙 18:50
·
−1 h
Sarnia is 1 h behind Buenos Aires.
When you, Buenos Aires and Sarnia 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
🇨🇦 Sarnia
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 | 🇨🇦 Sarnia |
|---|---|---|
| Local time | 22:27 | 21:27 |
| Local date | Wednesday, October 14, 2026 | Wednesday, October 14, 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 | 06:14 | 07:42 |
| Sunset | 19:07 | 18:50 |
| Daylight | 12 h 54 min | 11 h 8 min |
| People on this clock | 2,891,082 | 71,594 |
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 Sarnia: common questions
What is the time difference between Buenos Aires and Sarnia?
Sarnia is 1 hour behind: it uses UTC−4, while Buenos Aires is on UTC−3.
What time is it in Sarnia at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Sarnia it is 8:00 AM at that moment.
What time is it in Sarnia when it is 6:00 PM in Buenos Aires?
When it is 6:00 PM in Buenos Aires, it is 5:00 PM in Sarnia.
When is a good time to call Sarnia from Buenos Aires?
Between 10:00 AM and 6:00 PM in Buenos Aires – that is 9:00 AM to 5:00 PM in Sarnia – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Buenos Aires is it still yesterday in Sarnia?
Before 1:00 AM in Buenos Aires, the date in Sarnia has not changed yet. From 11:00 PM in Sarnia, it is already the next day in Buenos Aires.
Is the time difference between Buenos Aires and Sarnia the same all year?
No. Only Sarnia switches to summer time, so the gap changes twice a year. From November 1, 2026, Sarnia will be 2 hours behind Buenos Aires.
