Fairfax, VA to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Fairfax, VA. 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.
Fairfax, VA 01:10 1:10 AM Buenos Aires 02:10 2:10 AM You –:–
01:10 1:10 AM
Eastern Daylight Time · UTC-4
☀️ 07:21 · 🌙 18:29
02:10 2:10 AM
Argentina Standard Time · UTC-3
☀️ 06:09 · 🌙 19:11
·
+1 h
Buenos Aires is 1 h ahead of Fairfax, VA.
When you, Fairfax, 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
🇺🇸 Fairfax, 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 | 🇺🇸 Fairfax, VA | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 01:10 | 02:10 |
| 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 Fairfax, 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 | 06:09 |
| Sunset | 18:29 | 19:11 |
| Daylight | 11 h 8 min | 13 h 2 min |
| People on this clock | 24,146 | 2,891,082 |
Compare Fairfax, VA with another city
More comparisons with Fairfax, VA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Fairfax, VA and Buenos Aires: common questions
What is the time difference between Fairfax, VA, and Buenos Aires?
Buenos Aires is 1 hour ahead: it uses UTC−3, while Fairfax is on UTC−4.
What time is it in Buenos Aires when it is 9:00 AM in Fairfax, VA?
When it is 9:00 AM in Fairfax, it is 10:00 AM in Buenos Aires.
What time is it in Buenos Aires when it is 6:00 PM in Fairfax, VA?
When it is 6:00 PM in Fairfax, it is 7:00 PM in Buenos Aires.
Is there a time when both Fairfax, VA, and Buenos Aires are at work?
Yes: from 9:00 AM to 5:00 PM in Fairfax (10:00 AM to 6:00 PM in Buenos Aires), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Buenos Aires?
From 11:00 PM in Fairfax, 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 Fairfax.
Does the time difference between Fairfax, VA, and Buenos Aires change?
Yes. The clocks change only in Fairfax. From November 1, 2026, Buenos Aires will be 2 hours ahead of Fairfax.
