Reading to Buenos Aires: time difference
Buenos Aires is 4 h behind Reading. 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.
Reading 01:54 1:54 AM Buenos Aires 21:54 9:54 PM You –:–
01:54 1:54 AM
British Summer Time · UTC+1
☀️ 07:19 · 🌙 18:24
21:54 9:54 PM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
·
−4 h
Buenos Aires is 4 h behind Reading.
When you, Reading 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
🇬🇧 Reading
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 | 🇬🇧 Reading | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 01:54 | 21:54 |
| Local date | Saturday, October 10, 2026 | Friday, October 9, 2026 |
| Time zone | British Summer Time | Argentina Standard Time |
| UTC offset | UTC+1 | UTC-3 |
| Offset from Reading | — | −4 h |
| IANA zone | Europe/London | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:19 | 06:20 |
| Sunset | 18:24 | 19:03 |
| Daylight | 11 h 4 min | 12 h 43 min |
| People on this clock | 162,666 | 2,891,082 |
Compare Reading with another city
More comparisons with Reading: the time zones next to it and the far side of the clock.
Big time differences
Reading and Buenos Aires: common questions
What is the time difference between Reading and Buenos Aires?
Buenos Aires is 4 hours behind: it uses UTC−3, while Reading is on UTC+1.
What time is it in Buenos Aires at the start of the working day in Reading?
The working day in Reading starts at 9:00 AM; in Buenos Aires it is 5:00 AM at that moment.
What time is it in Buenos Aires at the end of the working day in Reading?
The working day in Reading 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 Reading?
Between 1:00 PM and 6:00 PM in Reading – 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 Reading?
The new day starts in Buenos Aires later: until 4:00 AM in Reading, it is still the previous day there. From 8:00 PM in Buenos Aires, Reading is already on the next day.
Is the time difference between Reading and Buenos Aires the same all year?
No. Only Reading switches to summer time, so the gap changes twice a year. From October 25, 2026, Buenos Aires will be 3 hours behind Reading.
