Buenos Aires to Ottawa, IL: time difference
Ottawa, IL is 2 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 00:13 12:13 AM Ottawa, IL 22:13 10:13 PM You –:–
00:13 12:13 AM
Argentina Standard Time · UTC-3
☀️ 06:05 · 🌙 19:13
22:13 10:13 PM
Central Daylight Time · UTC-5
☀️ 07:14 · 🌙 18:07
·
−2 h
Ottawa, IL is 2 h behind Buenos Aires.
When you, Buenos Aires and Ottawa, IL 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
🇺🇸 Ottawa, IL
22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇺🇸 Ottawa, IL |
|---|---|---|
| Local time | 00:13 | 22:13 |
| Local date | Thursday, October 22, 2026 | Wednesday, October 21, 2026 |
| Time zone | Argentina Standard Time | Central Daylight Time |
| UTC offset | UTC-3 | UTC-5 |
| Offset from Buenos Aires | — | −2 h |
| IANA zone | America/Argentina/Buenos Aires | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 06:05 | 07:14 |
| Sunset | 19:13 | 18:07 |
| Daylight | 13 h 8 min | 10 h 52 min |
| People on this clock | 2,891,082 | 18,342 |
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 Ottawa, IL: common questions
What is the time difference between Buenos Aires and Ottawa, IL?
Ottawa is 2 hours behind: it uses UTC−5, while Buenos Aires is on UTC−3.
What time is it in Ottawa, IL, at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Ottawa it is 7:00 AM at that moment.
If it is 6:00 PM in Buenos Aires, what time is it in Ottawa, IL?
At 6:00 PM in Buenos Aires, clocks in Ottawa show 4:00 PM.
When do working hours in Buenos Aires and in Ottawa, IL, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 11:00 AM to 6:00 PM in Buenos Aires, which is 9:00 AM to 4:00 PM in Ottawa.
Until what time in Buenos Aires is it still yesterday in Ottawa, IL?
Before 2:00 AM in Buenos Aires, the date in Ottawa has not changed yet. From 10:00 PM in Ottawa, it is already the next day in Buenos Aires.
Is the time difference between Buenos Aires and Ottawa, IL, the same all year?
No. Only Ottawa switches to summer time, so the gap changes twice a year. From November 1, 2026, Ottawa will be 3 hours behind Buenos Aires.
