Athens to Sao Tome and Principe: time difference
Sao Tome and Principe is 3 h behind Athens. Live clocks for both, the working hours they share, and how each one sits against your own time.
−3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Athens 09:03 9:03 AM Sao Tome and Principe 06:03 6:03 AM You –:–
09:03 9:03 AM
Eastern European Summer Time · UTC+3
☀️ 07:29 · 🌙 18:56
06:03 6:03 AM
Greenwich Mean Time · UTC+0
☀️ 05:18 · 🌙 17:24
·
−3 h
Sao Tome and Principe is 3 h behind Athens.
When you, Athens and Sao Tome and Principe 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
🇸🇹 Sao Tome and Principe
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 | 🇸🇹 Sao Tome and Principe |
|---|---|---|
| Local time | 09:03 | 06:03 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 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 | Africa/Sao Tome |
| Daylight saving | On summer time → UTC+2, Oct 25, 03:00 | Not observed |
| Sunrise | 07:29 | 05:18 |
| Sunset | 18:56 | 17:24 |
| Daylight | 11 h 27 min | 12 h 6 min |
| People on this clock | 3,090,508 | 204,327 |
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 Sao Tome and Principe: common questions
What is the time difference between Athens and Sao Tome and Principe?
Sao Tome and Principe is 3 hours behind: it uses UTC+0, while Athens is on UTC+3.
If it is 9:00 AM in Athens, what time is it in Sao Tome and Principe?
At 9:00 AM in Athens, clocks in Sao Tome and Principe show 6:00 AM.
What time is it in Sao Tome and Principe at the end of the working day in Athens?
The working day in Athens ends at 6:00 PM; in Sao Tome and Principe it is 3:00 PM at that moment.
When is a good time to call Sao Tome and Principe from Athens?
Between 12:00 PM and 6:00 PM in Athens – that is 9:00 AM to 3:00 PM in Sao Tome and Principe – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Sao Tome and Principe?
Until 3:00 AM in Athens it is still the previous day in Sao Tome and Principe. The other way round, from 9:00 PM in Sao Tome and Principe it is already the next day in Athens.
Does the time gap between Athens and Sao Tome and Principe change during the year?
Yes – daylight saving time is used in Athens but not in Sao Tome and Principe. From October 25, 2026, Sao Tome and Principe will be 2 hours behind Athens.
