Buenos Aires to New Castle, PA: time difference
New Castle, PA 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 00:16 12:16 AM New Castle, PA 23:16 11:16 PM You –:–
00:16 12:16 AM
Argentina Standard Time · UTC-3
☀️ 06:06 · 🌙 19:12
23:16 11:16 PM
Eastern Daylight Time · UTC-4
☀️ 07:39 · 🌙 18:35
·
−1 h
New Castle, PA is 1 h behind Buenos Aires.
When you, Buenos Aires and New Castle, PA 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
🇺🇸 New Castle, PA
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 | 🇺🇸 New Castle, PA |
|---|---|---|
| Local time | 00:16 | 23:16 |
| Local date | Wednesday, October 21, 2026 | Tuesday, October 20, 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 | 06:06 | 07:39 |
| Sunset | 19:12 | 18:35 |
| Daylight | 13 h 6 min | 10 h 56 min |
| People on this clock | 2,891,082 | 21,926 |
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 New Castle, PA: common questions
How far behind Buenos Aires is New Castle, PA?
New Castle is 1 hour behind Buenos Aires: UTC−4 against UTC−3.
What time is it in New Castle, PA, when it is 9:00 AM in Buenos Aires?
When it is 9:00 AM in Buenos Aires, it is 8:00 AM in New Castle.
If it is 6:00 PM in Buenos Aires, what time is it in New Castle, PA?
At 6:00 PM in Buenos Aires, clocks in New Castle show 5:00 PM.
Is there a time when both Buenos Aires and New Castle, PA, are at work?
Yes: from 10:00 AM to 6:00 PM in Buenos Aires (9:00 AM to 5:00 PM in New Castle), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in New Castle, PA, compared with Buenos Aires?
The new day starts in New Castle later: until 1:00 AM in Buenos Aires, it is still the previous day there. From 11:00 PM in New Castle, Buenos Aires is already on the next day.
Is the time difference between Buenos Aires and New Castle, PA, the same all year?
No. Only New Castle switches to summer time, so the gap changes twice a year. From November 1, 2026, New Castle will be 2 hours behind Buenos Aires.
