Buenos Aires to Westminster: time difference
Westminster is 4 h ahead of Buenos Aires. 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.
Buenos Aires 17:27 5:27 PM Westminster 21:27 9:27 PM You –:–
17:27 5:27 PM
Argentina Standard Time · UTC-3
☀️ 06:10 · 🌙 19:10
21:27 9:27 PM
British Summer Time · UTC+1
☀️ 07:28 · 🌙 18:05
·
+4 h
Westminster is 4 h ahead of Buenos Aires.
When you, Buenos Aires and Westminster 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
🇬🇧 Westminster
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 0 12 AM 1 1 AM 2 2 AM 3 3 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇬🇧 Westminster |
|---|---|---|
| Local time | 17:27 | 21:27 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Argentina Standard Time | British Summer Time |
| UTC offset | UTC-3 | UTC+1 |
| Offset from Buenos Aires | — | +4 h |
| IANA zone | America/Argentina/Buenos Aires | Europe/London |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 06:10 | 07:28 |
| Sunset | 19:10 | 18:05 |
| Daylight | 13 h | 10 h 37 min |
| People on this clock | 2,891,082 | 247,614 |
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 Westminster: common questions
How many hours ahead of Buenos Aires is Westminster?
The clocks in Westminster are 4 hours ahead of those in Buenos Aires (UTC+1 and UTC−3).
What time is it in Westminster at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Westminster it is 1:00 PM at that moment.
What time is it in Westminster when it is 6:00 PM in Buenos Aires?
When it is 6:00 PM in Buenos Aires, it is 10:00 PM in Westminster.
When is a good time to call Westminster from Buenos Aires?
Between 9:00 AM and 2:00 PM in Buenos Aires – that is 1:00 PM to 6:00 PM in Westminster – both places are within working hours (9:00 AM–6:00 PM).
From what time in Buenos Aires is it tomorrow in Westminster?
Once it is 8:00 PM in Buenos Aires, the date in Westminster has already changed. Until 4:00 AM in Westminster, it is still the previous day in Buenos Aires.
Does the time difference between Buenos Aires and Westminster change?
Yes. The clocks change only in Westminster. From October 25, 2026, Westminster will be 3 hours ahead of Buenos Aires.
