Buenos Aires to the United States: time difference
The United States 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 22:47 10:47 PM United States 21:47 9:47 PM You –:–
22:47 10:47 PM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
21:47 9:47 PM
Eastern Daylight Time · UTC-4
☀️ 07:12 · 🌙 18:40
·
−1 h
The United States is 1 h behind Buenos Aires.
When you, Buenos Aires and the United States 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
🇺🇸 United States
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 | 🇺🇸 United States |
|---|---|---|
| Local time | 22:47 | 21:47 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 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/New York |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 06:20 | 07:12 |
| Sunset | 19:03 | 18:40 |
| Daylight | 12 h 43 min | 11 h 28 min |
| People on this clock | 2,891,082 | 340,110,988 |
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 the United States: common questions
What is the time difference between Buenos Aires and the United States?
The United States is 1 hour behind: it uses UTC−4, while Buenos Aires is on UTC−3.
What time is it in the United States at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in the United States it is 8:00 AM at that moment.
What time is it in the United States at the end of the working day in Buenos Aires?
The working day in Buenos Aires ends at 6:00 PM; in the United States it is 5:00 PM at that moment.
When is a good time to call the United States from Buenos Aires?
Between 10:00 AM and 6:00 PM in Buenos Aires – that is 9:00 AM to 5:00 PM in the United States – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in the United States compared with Buenos Aires?
The new day starts in the United States later: until 1:00 AM in Buenos Aires, it is still the previous day there. From 11:00 PM in the United States, Buenos Aires is already on the next day.
Does the time difference between Buenos Aires and the United States change?
Yes. The clocks change only in the United States. From November 1, 2026, the United States will be 2 hours behind Buenos Aires.
