Kos to Buenos Aires: time difference
Buenos Aires is 6 h behind Kos. Live clocks for both, the working hours they share, and how each one sits against your own time.
−6 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Kos 09:21 9:21 AM Buenos Aires 03:21 3:21 AM You –:–
09:21 9:21 AM
Eastern European Summer Time · UTC+3
☀️ 07:24 · 🌙 18:30
03:21 3:21 AM
Argentina Standard Time · UTC-3
☀️ 06:06 · 🌙 19:12
·
−6 h
Buenos Aires is 6 h behind Kos.
When you, Kos 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
🇬🇷 Kos
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
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇬🇷 Kos | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 09:21 | 03:21 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Eastern European Summer Time | Argentina Standard Time |
| UTC offset | UTC+3 | UTC-3 |
| Offset from Kos | — | −6 h |
| IANA zone | Europe/Athens | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC+2, Oct 25, 03:00 | Not observed |
| Sunrise | 07:24 | 06:06 |
| Sunset | 18:30 | 19:12 |
| Daylight | 11 h 6 min | 13 h 6 min |
| People on this clock | 30,947 | 2,891,082 |
Compare Kos with another city
More comparisons with Kos: the time zones next to it and the far side of the clock.
Big time differences
Kos and Buenos Aires: common questions
How many hours behind Kos is Buenos Aires?
The clocks in Buenos Aires are 6 hours behind those in Kos (UTC−3 and UTC+3).
What time is it in Buenos Aires when it is 9:00 AM in Kos?
When it is 9:00 AM in Kos, it is 3:00 AM in Buenos Aires.
What time is it in Buenos Aires when it is 6:00 PM in Kos?
When it is 6:00 PM in Kos, it is 12:00 PM in Buenos Aires.
Is there a time when both Kos and Buenos Aires are at work?
Yes: from 3:00 PM to 6:00 PM in Kos (9:00 AM to 12:00 PM in Buenos Aires), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Buenos Aires compared with Kos?
The new day starts in Buenos Aires later: until 6:00 AM in Kos, it is still the previous day there. From 6:00 PM in Buenos Aires, Kos is already on the next day.
Is the time difference between Kos and Buenos Aires the same all year?
No. Only Kos switches to summer time, so the gap changes twice a year. From October 25, 2026, Buenos Aires will be 5 hours behind Kos.
