Les Ulis to Buenos Aires: time difference
Buenos Aires is 5 h behind Les Ulis. Live clocks for both, the working hours they share, and how each one sits against your own time.
−5 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Les Ulis 04:02 4:02 AM Buenos Aires 23:02 11:02 PM You –:–
04:02 4:02 AM
Central European Summer Time · UTC+2
☀️ 08:13 · 🌙 19:02
23:02 11:02 PM
Argentina Standard Time · UTC-3
☀️ 06:12 · 🌙 19:08
·
−5 h
Buenos Aires is 5 h behind Les Ulis.
When you, Les Ulis 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
🇫🇷 Les Ulis
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
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇫🇷 Les Ulis | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 04:02 | 23:02 |
| Local date | Friday, October 16, 2026 | Thursday, October 15, 2026 |
| Time zone | Central European Summer Time | Argentina Standard Time |
| UTC offset | UTC+2 | UTC-3 |
| Offset from Les Ulis | — | −5 h |
| IANA zone | Europe/Paris | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | Not observed |
| Sunrise | 08:13 | 06:12 |
| Sunset | 19:02 | 19:08 |
| Daylight | 10 h 49 min | 12 h 56 min |
| People on this clock | 25,253 | 2,891,082 |
Compare Les Ulis with another city
More comparisons with Les Ulis: the time zones next to it and the far side of the clock.
Big time differences
Les Ulis and Buenos Aires: common questions
What is the time difference between Les Ulis and Buenos Aires?
Buenos Aires is 5 hours behind: it uses UTC−3, while Les Ulis is on UTC+2.
What time is it in Buenos Aires at the start of the working day in Les Ulis?
The working day in Les Ulis starts at 9:00 AM; in Buenos Aires it is 4:00 AM at that moment.
What time is it in Buenos Aires at the end of the working day in Les Ulis?
The working day in Les Ulis ends at 6:00 PM; in Buenos Aires it is 1:00 PM at that moment.
Is there a time when both Les Ulis and Buenos Aires are at work?
Yes: from 2:00 PM to 6:00 PM in Les Ulis (9:00 AM to 1:00 PM in Buenos Aires), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in Buenos Aires?
Until 5:00 AM in Les Ulis it is still the previous day in Buenos Aires. The other way round, from 7:00 PM in Buenos Aires it is already the next day in Les Ulis.
Does the time difference between Les Ulis and Buenos Aires change?
Yes. The clocks change only in Les Ulis. From October 25, 2026, Buenos Aires will be 4 hours behind Les Ulis.
