🇬🇧 Chatham, United Kingdom
26
- British Summer Time
- UTC+1
- Golden hour
☀️ 07:27 · 🌙 18:01 · 10 h 34 min
Chatham to Buenos Aires: time difference
Buenos Aires is 4 h behind Chatham. 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.
Chatham 07:52 7:52 AM Buenos Aires 03:52 3:52 AM You –:–
07:52 7:52 AM
British Summer Time · UTC+1
☀️ 07:27 · 🌙 18:01
03:52 3:52 AM
Argentina Standard Time · UTC-3
☀️ 06:09 · 🌙 19:11
·
−4 h
Buenos Aires is 4 h behind Chatham.
When you, Chatham 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
🇬🇧 Chatham
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 | 🇬🇧 Chatham | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 07:52 | 03:52 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | British Summer Time | Argentina Standard Time |
| UTC offset | UTC+1 | UTC-3 |
| Offset from Chatham | — | −4 h |
| IANA zone | Europe/London | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:27 | 06:09 |
| Sunset | 18:01 | 19:11 |
| Daylight | 10 h 34 min | 13 h 2 min |
| People on this clock | 76,792 | 2,891,082 |
Compare Chatham with another city
More comparisons with Chatham: the time zones next to it and the far side of the clock.
Big time differences
Chatham and Buenos Aires: common questions
How many hours behind Chatham is Buenos Aires?
The clocks in Buenos Aires are 4 hours behind those in Chatham (UTC−3 and UTC+1).
What time is it in Buenos Aires when it is 9:00 AM in Chatham?
When it is 9:00 AM in Chatham, it is 5:00 AM in Buenos Aires.
What time is it in Buenos Aires at the end of the working day in Chatham?
The working day in Chatham ends at 6:00 PM; in Buenos Aires it is 2:00 PM at that moment.
When is a good time to call Buenos Aires from Chatham?
Between 1:00 PM and 6:00 PM in Chatham – that is 9:00 AM to 2:00 PM in Buenos Aires – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Buenos Aires?
Until 4:00 AM in Chatham 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 Chatham.
Is the time difference between Chatham and Buenos Aires the same all year?
No. Only Chatham switches to summer time, so the gap changes twice a year. From October 25, 2026, Buenos Aires will be 3 hours behind Chatham.
