Istanbul to Guinea-Bissau: time difference
Guinea-Bissau is 3 h behind Istanbul. 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.
Istanbul 08:43 8:43 AM Guinea-Bissau 05:43 5:43 AM You –:–
08:43 8:43 AM
GMT+03:00 · UTC+3
☀️ 07:10 · 🌙 18:33
05:43 5:43 AM
Greenwich Mean Time · UTC+0
☀️ 06:52 · 🌙 18:48
·
−3 h
Guinea-Bissau is 3 h behind Istanbul.
When you, Istanbul and Guinea-Bissau 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
🇬🇼 Guinea-Bissau
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 | 🇬🇼 Guinea-Bissau |
|---|---|---|
| Local time | 08:43 | 05:43 |
| 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/Bissau |
| Daylight saving | Not observed | Not observed |
| Sunrise | 07:10 | 06:52 |
| Sunset | 18:33 | 18:48 |
| Daylight | 11 h 23 min | 11 h 56 min |
| People on this clock | 15,701,602 | 1,861,283 |
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 Guinea-Bissau: common questions
What is the time difference between Istanbul and Guinea-Bissau?
Guinea-Bissau is 3 hours behind: it uses UTC+0, while Istanbul is on UTC+3.
What time is it in Guinea-Bissau when it is 9:00 AM in Istanbul?
When it is 9:00 AM in Istanbul, it is 6:00 AM in Guinea-Bissau.
What time is it in Guinea-Bissau at the end of the working day in Istanbul?
The working day in Istanbul ends at 6:00 PM; in Guinea-Bissau it is 3:00 PM at that moment.
When is a good time to call Guinea-Bissau from Istanbul?
Between 12:00 PM and 6:00 PM in Istanbul – that is 9:00 AM to 3:00 PM in Guinea-Bissau – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Guinea-Bissau compared with Istanbul?
The new day starts in Guinea-Bissau later: until 3:00 AM in Istanbul, it is still the previous day there. From 9:00 PM in Guinea-Bissau, Istanbul is already on the next day.
Does the time gap between Istanbul and Guinea-Bissau change during the year?
No, the clocks change neither in Istanbul nor in Guinea-Bissau, so the gap is 3 hours all year round.
