Letchworth to Buenos Aires: time difference
Buenos Aires is 4 h behind Letchworth. 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.
Letchworth 04:34 4:34 AM Buenos Aires 00:34 12:34 AM You –:–
04:34 4:34 AM
British Summer Time · UTC+1
☀️ 07:34 · 🌙 17:58
00:34 12:34 AM
Argentina Standard Time · UTC-3
☀️ 06:07 · 🌙 19:11
·
−4 h
Buenos Aires is 4 h behind Letchworth.
When you, Letchworth 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
🇬🇧 Letchworth
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 | 🇬🇧 Letchworth | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 04:34 | 00:34 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | British Summer Time | Argentina Standard Time |
| UTC offset | UTC+1 | UTC-3 |
| Offset from Letchworth | — | −4 h |
| IANA zone | Europe/London | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:34 | 06:07 |
| Sunset | 17:58 | 19:11 |
| Daylight | 10 h 24 min | 13 h 4 min |
| People on this clock | 33,249 | 2,891,082 |
Compare Letchworth with another city
More comparisons with Letchworth: the time zones next to it and the far side of the clock.
Big time differences
Letchworth and Buenos Aires: common questions
How far behind Letchworth is Buenos Aires?
Buenos Aires is 4 hours behind Letchworth: UTC−3 against UTC+1.
What time is it in Buenos Aires when it is 9:00 AM in Letchworth?
When it is 9:00 AM in Letchworth, it is 5:00 AM in Buenos Aires.
What time is it in Buenos Aires at the end of the working day in Letchworth?
The working day in Letchworth ends at 6:00 PM; in Buenos Aires it is 2:00 PM at that moment.
When do working hours in Letchworth and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 1:00 PM to 6:00 PM in Letchworth, which is 9:00 AM to 2:00 PM in Buenos Aires.
When is it still the previous day in Buenos Aires?
Until 4:00 AM in Letchworth 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 Letchworth.
Is the time difference between Letchworth and Buenos Aires the same all year?
No. Only Letchworth switches to summer time, so the gap changes twice a year. From October 25, 2026, Buenos Aires will be 3 hours behind Letchworth.
