Rochester, NY to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Rochester, 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.
Rochester, NY 20:59 8:59 PM Buenos Aires 21:59 9:59 PM You –:–
20:59 8:59 PM
Eastern Daylight Time · UTC-4
☀️ 07:17 · 🌙 18:39
21:59 9:59 PM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
·
+1 h
Buenos Aires is 1 h ahead of Rochester, NY.
When you, Rochester, 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
🇺🇸 Rochester, 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
- Asleep
- Early
- Working hours
- Evening
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Time zones side by side
| Detail | 🇺🇸 Rochester, NY | 🇦🇷 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 Rochester, 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 | 07:17 | 06:20 |
| Sunset | 18:39 | 19:03 |
| Daylight | 11 h 22 min | 12 h 43 min |
| People on this clock | 211,328 | 2,891,082 |
Compare Rochester, NY with another city
More comparisons with Rochester, NY: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Rochester, NY and Buenos Aires: common questions
How far ahead of Rochester, NY, is Buenos Aires?
Buenos Aires is 1 hour ahead of Rochester: UTC−3 against UTC−4.
What time is it in Buenos Aires at the start of the working day in Rochester, NY?
The working day in Rochester starts at 9:00 AM; in Buenos Aires it is 10:00 AM at that moment.
If it is 6:00 PM in Rochester, NY, what time is it in Buenos Aires?
At 6:00 PM in Rochester, clocks in Buenos Aires show 7:00 PM.
When do working hours in Rochester, NY, and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Rochester, 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 Rochester, NY, 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 Rochester.
Does the time gap between Rochester, NY, and Buenos Aires change during the year?
Yes – daylight saving time is used in Rochester but not in Buenos Aires. From November 1, 2026, Buenos Aires will be 2 hours ahead of Rochester.
