Istanbul to Sao Tome: time difference
Sao Tome is 3 h behind Istanbul. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇸🇹 Sao Tome, Sao Tome and Principe
06
- Greenwich Mean Time
- UTC+0
- Daytime
☀️ 05:18 · 🌙 17:24 · 12 h 6 min
−3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Istanbul 14:38 2:38 PM Sao Tome 11:38 11:38 AM You –:–
14:38 2:38 PM
GMT+03:00 · UTC+3
☀️ 07:10 · 🌙 18:33
11:38 11:38 AM
Greenwich Mean Time · UTC+0
☀️ 05:18 · 🌙 17:24
·
−3 h
Sao Tome is 3 h behind Istanbul.
When you, Istanbul and Sao Tome are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇹🇷 Istanbul
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
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 | 🇹🇷 Istanbul | 🇸🇹 Sao Tome |
|---|---|---|
| Local time | 14:38 | 11:38 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | GMT+03:00 | Greenwich Mean Time |
| UTC offset | UTC+3 | UTC+0 |
| Offset from Istanbul | — | −3 h |
| IANA zone | Europe/Istanbul | Africa/Sao Tome |
| Daylight saving | Not observed | Not observed |
| Sunrise | 07:10 | 05:18 |
| Sunset | 18:33 | 17:24 |
| Daylight | 11 h 23 min | 12 h 6 min |
| People on this clock | 15,701,602 | 53,300 |
Compare Istanbul with another city
More comparisons with Istanbul: the time zones next to it and the far side of the clock.
Big time differences
Istanbul and Sao Tome: common questions
What is the time difference between Istanbul and Sao Tome?
Sao Tome is 3 hours behind: it uses UTC+0, while Istanbul is on UTC+3.
If it is 9:00 AM in Istanbul, what time is it in Sao Tome?
At 9:00 AM in Istanbul, clocks in Sao Tome show 6:00 AM.
If it is 6:00 PM in Istanbul, what time is it in Sao Tome?
At 6:00 PM in Istanbul, clocks in Sao Tome show 3:00 PM.
When do working hours in Istanbul and in Sao Tome overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Istanbul, which is 9:00 AM to 3:00 PM in Sao Tome.
When is it still the previous day in Sao Tome?
Until 3:00 AM in Istanbul it is still the previous day in Sao Tome. The other way round, from 9:00 PM in Sao Tome it is already the next day in Istanbul.
Does the time difference between Istanbul and Sao Tome change?
No. Neither place uses daylight saving time, so the difference stays 3 hours all year.
