Reston, VA to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Reston, VA. 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.
Reston, VA 21:29 9:29 PM Buenos Aires 22:29 10:29 PM You –:–
21:29 9:29 PM
Eastern Daylight Time · UTC-4
☀️ 07:21 · 🌙 18:29
22:29 10:29 PM
Argentina Standard Time · UTC-3
☀️ 06:10 · 🌙 19:10
·
+1 h
Buenos Aires is 1 h ahead of Reston, VA.
When you, Reston, VA 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
🇺🇸 Reston, VA
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 | 🇺🇸 Reston, VA | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 21:29 | 22:29 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Eastern Daylight Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Reston, VA | — | +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 | 07:21 | 06:10 |
| Sunset | 18:29 | 19:10 |
| Daylight | 11 h 8 min | 13 h |
| People on this clock | 58,404 | 2,891,082 |
Compare Reston, VA with another city
More comparisons with Reston, VA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Reston, VA and Buenos Aires: common questions
How far ahead of Reston, VA, is Buenos Aires?
Buenos Aires is 1 hour ahead of Reston: UTC−3 against UTC−4.
If it is 9:00 AM in Reston, VA, what time is it in Buenos Aires?
At 9:00 AM in Reston, clocks in Buenos Aires show 10:00 AM.
What time is it in Buenos Aires at the end of the working day in Reston, VA?
The working day in Reston ends at 6:00 PM; in Buenos Aires it is 7:00 PM at that moment.
When do working hours in Reston, VA, and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Reston, 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 Reston, VA, 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 Reston.
Does the time difference between Reston, VA, and Buenos Aires change?
Yes. The clocks change only in Reston. From November 1, 2026, Buenos Aires will be 2 hours ahead of Reston.
