Columbus, OH to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Columbus, OH. 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.
Columbus, OH 21:45 9:45 PM Buenos Aires 22:45 10:45 PM You –:–
21:45 9:45 PM
Eastern Daylight Time · UTC-4
☀️ 07:37 · 🌙 19:03
22:45 10:45 PM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
·
+1 h
Buenos Aires is 1 h ahead of Columbus, OH.
When you, Columbus, OH 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
🇺🇸 Columbus, OH
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 | 🇺🇸 Columbus, OH | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 21:45 | 22:45 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 2026 |
| Time zone | Eastern Daylight Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Columbus, OH | — | +1 h |
| IANA zone | America/New York | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:37 | 06:20 |
| Sunset | 19:03 | 19:03 |
| Daylight | 11 h 26 min | 12 h 43 min |
| People on this clock | 905,748 | 2,891,082 |
Compare Columbus, OH with another city
More comparisons with Columbus, OH: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Columbus, OH and Buenos Aires: common questions
How many hours ahead of Columbus, OH, is Buenos Aires?
The clocks in Buenos Aires are 1 hour ahead of those in Columbus (UTC−3 and UTC−4).
What time is it in Buenos Aires at the start of the working day in Columbus, OH?
The working day in Columbus starts at 9:00 AM; in Buenos Aires it is 10:00 AM at that moment.
What time is it in Buenos Aires at the end of the working day in Columbus, OH?
The working day in Columbus ends at 6:00 PM; in Buenos Aires it is 7:00 PM at that moment.
When do working hours in Columbus, OH, and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Columbus, which is 10:00 AM to 6:00 PM in Buenos Aires.
When is it already the next day in Buenos Aires?
From 11:00 PM in Columbus, OH, it is already the next day in Buenos Aires. The other way round, until 1:00 AM in Buenos Aires it is still the previous day in Columbus.
Does the time difference between Columbus, OH, and Buenos Aires change?
Yes. The clocks change only in Columbus. From November 1, 2026, Buenos Aires will be 2 hours ahead of Columbus.
