Portmarnock to Buenos Aires: time difference
Buenos Aires is 4 h behind Portmarnock. 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.
Portmarnock 18:22 6:22 PM Buenos Aires 14:22 2:22 PM You –:–
18:22 6:22 PM
Irish Standard Time · UTC+1
☀️ 07:55 · 🌙 18:26
14:22 2:22 PM
Argentina Standard Time · UTC-3
☀️ 06:10 · 🌙 19:10
·
−4 h
Buenos Aires is 4 h behind Portmarnock.
When you, Portmarnock 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
🇮🇪 Portmarnock
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 | 🇮🇪 Portmarnock | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 18:22 | 14:22 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Irish Standard Time | Argentina Standard Time |
| UTC offset | UTC+1 | UTC-3 |
| Offset from Portmarnock | — | −4 h |
| IANA zone | Europe/Dublin | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:55 | 06:10 |
| Sunset | 18:26 | 19:10 |
| Daylight | 10 h 31 min | 13 h |
| People on this clock | 9,285 | 2,891,082 |
Compare Portmarnock with another city
More comparisons with Portmarnock: the time zones next to it and the far side of the clock.
Big time differences
Portmarnock and Buenos Aires: common questions
How far behind Portmarnock is Buenos Aires?
Buenos Aires is 4 hours behind Portmarnock: UTC−3 against UTC+1.
What time is it in Buenos Aires when it is 9:00 AM in Portmarnock?
When it is 9:00 AM in Portmarnock, it is 5:00 AM in Buenos Aires.
If it is 6:00 PM in Portmarnock, what time is it in Buenos Aires?
At 6:00 PM in Portmarnock, clocks in Buenos Aires show 2:00 PM.
Is there a time when both Portmarnock and Buenos Aires are at work?
Yes: from 1:00 PM to 6:00 PM in Portmarnock (9:00 AM to 2:00 PM in Buenos Aires), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Buenos Aires compared with Portmarnock?
The new day starts in Buenos Aires later: until 4:00 AM in Portmarnock, it is still the previous day there. From 8:00 PM in Buenos Aires, Portmarnock is already on the next day.
Is the time difference between Portmarnock and Buenos Aires the same all year?
No. Only Portmarnock switches to summer time, so the gap changes twice a year. From October 25, 2026, Buenos Aires will be 3 hours behind Portmarnock.
