🇸🇹 Sao Tome, Sao Tome and Principe
20
- Greenwich Mean Time
- UTC+0
- Daytime
☀️ 05:18 · 🌙 17:24 · 12 h 6 min
Sao Tome to Istanbul: time difference
Istanbul is 3 h ahead of Sao Tome. 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.
Sao Tome 07:50 7:50 AM Istanbul 10:50 10:50 AM You –:–
07:50 7:50 AM
Greenwich Mean Time · UTC+0
☀️ 05:18 · 🌙 17:24
10:50 10:50 AM
GMT+03:00 · UTC+3
☀️ 07:10 · 🌙 18:33
·
+3 h
Istanbul is 3 h ahead of Sao Tome.
When you, Sao Tome and Istanbul are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇸🇹 Sao Tome
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
🇹🇷 Istanbul
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 0 12 AM 1 1 AM 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇸🇹 Sao Tome | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 07:50 | 10:50 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Greenwich Mean Time | GMT+03:00 |
| UTC offset | UTC+0 | UTC+3 |
| Offset from Sao Tome | — | +3 h |
| IANA zone | Africa/Sao Tome | Europe/Istanbul |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:18 | 07:10 |
| Sunset | 17:24 | 18:33 |
| Daylight | 12 h 6 min | 11 h 23 min |
| People on this clock | 53,300 | 15,701,602 |
Compare Sao Tome with another city
More comparisons with Sao Tome: the time zones next to it and the far side of the clock.
Big time differences
Sao Tome and Istanbul: common questions
How many hours ahead of Sao Tome is Istanbul?
The clocks in Istanbul are 3 hours ahead of those in Sao Tome (UTC+3 and UTC+0).
What time is it in Istanbul at the start of the working day in Sao Tome?
The working day in Sao Tome starts at 9:00 AM; in Istanbul it is 12:00 PM at that moment.
What time is it in Istanbul when it is 6:00 PM in Sao Tome?
When it is 6:00 PM in Sao Tome, it is 9:00 PM in Istanbul.
When do working hours in Sao Tome and in Istanbul overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 3:00 PM in Sao Tome, which is 12:00 PM to 6:00 PM in Istanbul.
When is it already the next day in Istanbul?
From 9:00 PM in Sao Tome it is already the next day in Istanbul. The other way round, until 3:00 AM in Istanbul it is still the previous day in Sao Tome.
Is the time difference between Sao Tome and Istanbul the same all year?
Yes. Neither Sao Tome nor Istanbul switches to summer time, so the gap is always 3 hours.
