🇬🇧 Colchester, United Kingdom
59
- British Summer Time
- UTC+1
- Twilight
☀️ 07:30 · 🌙 17:54 · 10 h 24 min
Colchester to Buenos Aires: time difference
Buenos Aires is 4 h behind Colchester. 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.
Colchester 06:23 6:23 AM Buenos Aires 02:23 2:23 AM You –:–
06:23 6:23 AM
British Summer Time · UTC+1
☀️ 07:30 · 🌙 17:54
02:23 2:23 AM
Argentina Standard Time · UTC-3
☀️ 06:06 · 🌙 19:12
·
−4 h
Buenos Aires is 4 h behind Colchester.
When you, Colchester 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
🇬🇧 Colchester
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 | 🇬🇧 Colchester | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 06:23 | 02:23 |
| 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 Colchester | — | −4 h |
| IANA zone | Europe/London | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:30 | 06:06 |
| Sunset | 17:54 | 19:12 |
| Daylight | 10 h 24 min | 13 h 6 min |
| People on this clock | 190,098 | 2,891,082 |
Compare Colchester with another city
More comparisons with Colchester: the time zones next to it and the far side of the clock.
Big time differences
Colchester and Buenos Aires: common questions
What is the time difference between Colchester and Buenos Aires?
Buenos Aires is 4 hours behind: it uses UTC−3, while Colchester is on UTC+1.
If it is 9:00 AM in Colchester, what time is it in Buenos Aires?
At 9:00 AM in Colchester, clocks in Buenos Aires show 5:00 AM.
What time is it in Buenos Aires at the end of the working day in Colchester?
The working day in Colchester 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 Colchester?
Between 1:00 PM and 6:00 PM in Colchester – 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 does the date change in Buenos Aires compared with Colchester?
The new day starts in Buenos Aires later: until 4:00 AM in Colchester, it is still the previous day there. From 8:00 PM in Buenos Aires, Colchester is already on the next day.
Does the time gap between Colchester and Buenos Aires change during the year?
Yes – daylight saving time is used in Colchester but not in Buenos Aires. From October 25, 2026, Buenos Aires will be 3 hours behind Colchester.
