The United States to Buenos Aires: time difference
Buenos Aires is 1 h ahead of the United States. 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.
United States 20:59 8:59 PM Buenos Aires 21:59 9:59 PM You –:–
20:59 8:59 PM
Eastern Daylight Time · UTC-4
☀️ 07:12 · 🌙 18:40
21:59 9:59 PM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
·
+1 h
Buenos Aires is 1 h ahead of the United States.
When you, the United States 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
🇺🇸 United States
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
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 United States | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 20:59 | 21:59 |
| 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 the United States | — | +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 | 07:12 | 06:20 |
| Sunset | 18:40 | 19:03 |
| Daylight | 11 h 28 min | 12 h 43 min |
| People on this clock | 340,110,988 | 2,891,082 |
Compare the United States with another city
More comparisons with the United States: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
The United States and Buenos Aires: common questions
How many hours ahead of the United States is Buenos Aires?
The clocks in Buenos Aires are 1 hour ahead of those in the United States (UTC−3 and UTC−4).
What time is it in Buenos Aires when it is 9:00 AM in the United States?
When it is 9:00 AM in the United States, it is 10:00 AM in Buenos Aires.
What time is it in Buenos Aires when it is 6:00 PM in the United States?
When it is 6:00 PM in the United States, it is 7:00 PM in Buenos Aires.
When do working hours in the United States and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in the United States, 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 the United States 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 the United States.
Does the time difference between the United States and Buenos Aires change?
Yes. The clocks change only in the United States. From November 1, 2026, Buenos Aires will be 2 hours ahead of the United States.
