🇦🇷 Buenos Aires, Argentina
07
- Argentina Standard Time
- UTC-3
- Twilight
☀️ 06:19 · 🌙 19:04 · 12 h 45 min
Buenos Aires to London: time difference
London 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 05:37 5:37 AM London 04:37 4:37 AM You –:–
05:37 5:37 AM
Argentina Standard Time · UTC-3
☀️ 06:19 · 🌙 19:04
04:37 4:37 AM
Eastern Daylight Time · UTC-4
☀️ 07:33 · 🌙 18:52
·
−1 h
London is 1 h behind Buenos Aires.
When you, Buenos Aires and London 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
🇨🇦 London
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 | 🇨🇦 London |
|---|---|---|
| Local time | 05:37 | 04:37 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 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/Toronto |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 06:19 | 07:33 |
| Sunset | 19:04 | 18:52 |
| Daylight | 12 h 45 min | 11 h 19 min |
| People on this clock | 2,891,082 | 383,822 |
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 London: common questions
What is the time difference between Buenos Aires and London?
London is 1 hour behind: it uses UTC−4, while Buenos Aires is on UTC−3.
What time is it in London when it is 9:00 AM in Buenos Aires?
When it is 9:00 AM in Buenos Aires, it is 8:00 AM in London.
What time is it in London when it is 6:00 PM in Buenos Aires?
When it is 6:00 PM in Buenos Aires, it is 5:00 PM in London.
When is a good time to call London from Buenos Aires?
Between 10:00 AM and 6:00 PM in Buenos Aires – that is 9:00 AM to 5:00 PM in London – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in London?
Until 1:00 AM in Buenos Aires it is still the previous day in London. The other way round, from 11:00 PM in London it is already the next day in Buenos Aires.
Does the time difference between Buenos Aires and London change?
Yes. The clocks change only in London. From November 1, 2026, London will be 2 hours behind Buenos Aires.
