Castlebar to Buenos Aires: time difference
Buenos Aires is 4 h behind Castlebar. Live clocks for both, the working hours they share, and how each one sits against your own time.
−4 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Castlebar 13:26 1:26 PM Buenos Aires 09:26 9:26 AM You –:–
13:26 1:26 PM
Irish Standard Time · UTC+1
☀️ 08:14 · 🌙 18:31
09:26 9:26 AM
Argentina Standard Time · UTC-3
☀️ 06:06 · 🌙 19:12
·
−4 h
Buenos Aires is 4 h behind Castlebar.
When you, Castlebar 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
🇮🇪 Castlebar
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
20 8 PM 21 9 PM 22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇮🇪 Castlebar | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 13:26 | 09:26 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Irish Standard Time | Argentina Standard Time |
| UTC offset | UTC+1 | UTC-3 |
| Offset from Castlebar | — | −4 h |
| IANA zone | Europe/Dublin | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 08:14 | 06:06 |
| Sunset | 18:31 | 19:12 |
| Daylight | 10 h 17 min | 13 h 6 min |
| People on this clock | 13,054 | 2,891,082 |
Compare Castlebar with another city
More comparisons with Castlebar: the time zones next to it and the far side of the clock.
Big time differences
Castlebar and Buenos Aires: common questions
What is the time difference between Castlebar and Buenos Aires?
Buenos Aires is 4 hours behind: it uses UTC−3, while Castlebar is on UTC+1.
If it is 9:00 AM in Castlebar, what time is it in Buenos Aires?
At 9:00 AM in Castlebar, clocks in Buenos Aires show 5:00 AM.
What time is it in Buenos Aires when it is 6:00 PM in Castlebar?
When it is 6:00 PM in Castlebar, it is 2:00 PM in Buenos Aires.
Is there a time when both Castlebar and Buenos Aires are at work?
Yes: from 1:00 PM to 6:00 PM in Castlebar (9:00 AM to 2:00 PM in Buenos Aires), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in Buenos Aires?
Until 4:00 AM in Castlebar it is still the previous day in Buenos Aires. The other way round, from 8:00 PM in Buenos Aires it is already the next day in Castlebar.
Is the time difference between Castlebar and Buenos Aires the same all year?
No. Only Castlebar switches to summer time, so the gap changes twice a year. From October 25, 2026, Buenos Aires will be 3 hours behind Castlebar.
