Hempstead, NY to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Hempstead, NY. 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.
Hempstead, NY 20:21 8:21 PM Buenos Aires 21:21 9:21 PM You –:–
20:21 8:21 PM
Eastern Daylight Time · UTC-4
☀️ 07:09 · 🌙 18:11
21:21 9:21 PM
Argentina Standard Time · UTC-3
☀️ 06:09 · 🌙 19:11
·
+1 h
Buenos Aires is 1 h ahead of Hempstead, NY.
When you, Hempstead, NY 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
🇺🇸 Hempstead, NY
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 | 🇺🇸 Hempstead, NY | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 20:21 | 21:21 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Eastern Daylight Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Hempstead, NY | — | +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 | 07:09 | 06:09 |
| Sunset | 18:11 | 19:11 |
| Daylight | 11 h 2 min | 13 h 2 min |
| People on this clock | 793,409 | 2,891,082 |
Compare Hempstead, NY with another city
More comparisons with Hempstead, NY: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Hempstead, NY and Buenos Aires: common questions
How many hours ahead of Hempstead, NY, is Buenos Aires?
The clocks in Buenos Aires are 1 hour ahead of those in Hempstead (UTC−3 and UTC−4).
What time is it in Buenos Aires at the start of the working day in Hempstead, NY?
The working day in Hempstead starts at 9:00 AM; in Buenos Aires it is 10:00 AM at that moment.
What time is it in Buenos Aires when it is 6:00 PM in Hempstead, NY?
When it is 6:00 PM in Hempstead, it is 7:00 PM in Buenos Aires.
When is a good time to call Buenos Aires from Hempstead, NY?
Between 9:00 AM and 5:00 PM in Hempstead – that is 10:00 AM to 6:00 PM in Buenos Aires – both places are within working hours (9:00 AM–6:00 PM).
From what time in Hempstead, NY, is it tomorrow in Buenos Aires?
Once it is 11:00 PM in Hempstead, the date in Buenos Aires has already changed. Until 1:00 AM in Buenos Aires, it is still the previous day in Hempstead.
Does the time difference between Hempstead, NY, and Buenos Aires change?
Yes. The clocks change only in Hempstead. From November 1, 2026, Buenos Aires will be 2 hours ahead of Hempstead.
