Buenos Aires to Greenwich: time difference
Greenwich 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 18:59 6:59 PM Greenwich 22:59 10:59 PM You –:–
18:59 6:59 PM
Argentina Standard Time · UTC-3
☀️ 06:06 · 🌙 19:12
22:59 10:59 PM
British Summer Time · UTC+1
☀️ 07:33 · 🌙 17:58
·
+4 h
Greenwich is 4 h ahead of Buenos Aires.
When you, Buenos Aires and Greenwich 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
🇬🇧 Greenwich
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 | 🇬🇧 Greenwich |
|---|---|---|
| Local time | 18:59 | 22:59 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 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 | 06:06 | 07:33 |
| Sunset | 19:12 | 17:58 |
| Daylight | 13 h 6 min | 10 h 26 min |
| People on this clock | 2,891,082 | 285,000 |
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 Greenwich: common questions
How far ahead of Buenos Aires is Greenwich?
Greenwich is 4 hours ahead of Buenos Aires: UTC+1 against UTC−3.
If it is 9:00 AM in Buenos Aires, what time is it in Greenwich?
At 9:00 AM in Buenos Aires, clocks in Greenwich show 1:00 PM.
If it is 6:00 PM in Buenos Aires, what time is it in Greenwich?
At 6:00 PM in Buenos Aires, clocks in Greenwich show 10:00 PM.
When do working hours in Buenos Aires and in Greenwich overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 2:00 PM in Buenos Aires, which is 1:00 PM to 6:00 PM in Greenwich.
When does the date change in Greenwich compared with Buenos Aires?
The new day starts in Greenwich earlier: at 8:00 PM in Buenos Aires it is already midnight there. Until 4:00 AM in Greenwich, Buenos Aires is still on the previous day.
Does the time difference between Buenos Aires and Greenwich change?
Yes. The clocks change only in Greenwich. From October 25, 2026, Greenwich will be 3 hours ahead of Buenos Aires.
