Athens to Keflavik: time difference
Keflavik is 3 h behind Athens. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Athens 06:16 6:16 AM Keflavik 03:16 3:16 AM You –:–
06:16 6:16 AM
Eastern European Summer Time · UTC+3
☀️ 07:38 · 🌙 18:44
03:16 3:16 AM
Greenwich Mean Time · UTC+0
☀️ 08:32 · 🌙 18:00
·
−3 h
Keflavik is 3 h behind Athens.
When you, Athens and Keflavik are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇬🇷 Athens
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
🇮🇸 Keflavik
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 20 8 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇬🇷 Athens | 🇮🇸 Keflavik |
|---|---|---|
| Local time | 06:16 | 03:16 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Eastern European Summer Time | Greenwich Mean Time |
| UTC offset | UTC+3 | UTC+0 |
| Offset from Athens | — | −3 h |
| IANA zone | Europe/Athens | Atlantic/Reykjavik |
| Daylight saving | On summer time → UTC+2, Oct 25, 03:00 | Not observed |
| Sunrise | 07:38 | 08:32 |
| Sunset | 18:44 | 18:00 |
| Daylight | 11 h 6 min | 9 h 28 min |
| People on this clock | 3,090,508 | 15,000 |
Compare Athens with another city
More comparisons with Athens: the time zones next to it and the far side of the clock.
Big time differences
Athens and Keflavik: common questions
What is the time difference between Athens and Keflavik?
Keflavik is 3 hours behind: it uses UTC+0, while Athens is on UTC+3.
What time is it in Keflavik when it is 9:00 AM in Athens?
When it is 9:00 AM in Athens, it is 6:00 AM in Keflavik.
What time is it in Keflavik when it is 6:00 PM in Athens?
When it is 6:00 PM in Athens, it is 3:00 PM in Keflavik.
When is a good time to call Keflavik from Athens?
Between 12:00 PM and 6:00 PM in Athens – that is 9:00 AM to 3:00 PM in Keflavik – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Keflavik?
Until 3:00 AM in Athens it is still the previous day in Keflavik. The other way round, from 9:00 PM in Keflavik it is already the next day in Athens.
Is the time difference between Athens and Keflavik the same all year?
No. Only Athens switches to summer time, so the gap changes twice a year. From October 25, 2026, Keflavik will be 2 hours behind Athens.
