Istanbul to Heidelberg, GP: time difference
Heidelberg, GP is 1 h behind Istanbul. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇿🇦 Heidelberg, GP, South Africa
52
- South Africa Standard Time
- UTC+2
- Daytime
☀️ 05:52 · 🌙 18:52 · 13 h
−1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Istanbul 10:15 10:15 AM Heidelberg, GP 09:15 9:15 AM You –:–
10:15 10:15 AM
GMT+03:00 · UTC+3
☀️ 07:19 · 🌙 18:21
09:15 9:15 AM
South Africa Standard Time · UTC+2
☀️ 05:52 · 🌙 18:52
·
−1 h
Heidelberg, GP is 1 h behind Istanbul.
When you, Istanbul and Heidelberg, GP 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
🇿🇦 Heidelberg, GP
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 21 9 PM 22 10 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇷 Istanbul | 🇿🇦 Heidelberg, GP |
|---|---|---|
| Local time | 10:15 | 09:15 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | GMT+03:00 | South Africa Standard Time |
| UTC offset | UTC+3 | UTC+2 |
| Offset from Istanbul | — | −1 h |
| IANA zone | Europe/Istanbul | Africa/Johannesburg |
| Daylight saving | Not observed | Not observed |
| Sunrise | 07:19 | 05:52 |
| Sunset | 18:21 | 18:52 |
| Daylight | 11 h 2 min | 13 h |
| People on this clock | 15,701,602 | 35,000 |
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 Heidelberg, GP: common questions
How many hours behind Istanbul is Heidelberg, GP?
The clocks in Heidelberg are 1 hour behind those in Istanbul (UTC+2 and UTC+3).
If it is 9:00 AM in Istanbul, what time is it in Heidelberg, GP?
At 9:00 AM in Istanbul, clocks in Heidelberg show 8:00 AM.
What time is it in Heidelberg, GP, when it is 6:00 PM in Istanbul?
When it is 6:00 PM in Istanbul, it is 5:00 PM in Heidelberg.
When do working hours in Istanbul and in Heidelberg, GP, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Istanbul, which is 9:00 AM to 5:00 PM in Heidelberg.
When is it still the previous day in Heidelberg, GP?
Until 1:00 AM in Istanbul it is still the previous day in Heidelberg. The other way round, from 11:00 PM in Heidelberg it is already the next day in Istanbul.
Is the time difference between Istanbul and Heidelberg, GP, the same all year?
Yes. Neither Istanbul nor Heidelberg switches to summer time, so the gap is always 1 hour.
