Swansea to Buenos Aires: time difference
Buenos Aires is 4 h behind Swansea. 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.
Swansea 04:34 4:34 AM Buenos Aires 00:34 12:34 AM You –:–
04:34 4:34 AM
British Summer Time · UTC+1
☀️ 07:32 · 🌙 18:35
00:34 12:34 AM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
·
−4 h
Buenos Aires is 4 h behind Swansea.
When you, Swansea 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
🇬🇧 Swansea
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 | 🇬🇧 Swansea | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 04:34 | 00:34 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | British Summer Time | Argentina Standard Time |
| UTC offset | UTC+1 | UTC-3 |
| Offset from Swansea | — | −4 h |
| IANA zone | Europe/London | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:32 | 06:20 |
| Sunset | 18:35 | 19:03 |
| Daylight | 11 h 4 min | 12 h 43 min |
| People on this clock | 239,000 | 2,891,082 |
Compare Swansea with another city
More comparisons with Swansea: the time zones next to it and the far side of the clock.
Big time differences
Swansea and Buenos Aires: common questions
How far behind Swansea is Buenos Aires?
Buenos Aires is 4 hours behind Swansea: UTC−3 against UTC+1.
If it is 9:00 AM in Swansea, what time is it in Buenos Aires?
At 9:00 AM in Swansea, clocks in Buenos Aires show 5:00 AM.
If it is 6:00 PM in Swansea, what time is it in Buenos Aires?
At 6:00 PM in Swansea, clocks in Buenos Aires show 2:00 PM.
When do working hours in Swansea and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 1:00 PM to 6:00 PM in Swansea, which is 9:00 AM to 2:00 PM in Buenos Aires.
When does the date change in Buenos Aires compared with Swansea?
The new day starts in Buenos Aires later: until 4:00 AM in Swansea, it is still the previous day there. From 8:00 PM in Buenos Aires, Swansea is already on the next day.
Does the time gap between Swansea and Buenos Aires change during the year?
Yes – daylight saving time is used in Swansea but not in Buenos Aires. From October 25, 2026, Buenos Aires will be 3 hours behind Swansea.
