Istanbul to Tumkur: time difference
Tumkur is 2 h 30 min ahead of Istanbul. Live clocks for both, the working hours they share, and how each one sits against your own time.
+2 h 30 min
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Istanbul 05:57 5:57 AM Tumkur 08:27 8:27 AM You –:–
05:57 5:57 AM
GMT+03:00 · UTC+3
☀️ 07:18 · 🌙 18:22
08:27 8:27 AM
India Standard Time · UTC+5:30
☀️ 06:13 · 🌙 18:02
·
+2 h 30 min
Tumkur is 2 h 30 min ahead of Istanbul.
When you, Istanbul and Tumkur 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
🇮🇳 Tumkur
2:30 2:30 AM 3:30 3:30 AM 4:30 4:30 AM 5:30 5:30 AM 6:30 6:30 AM 7:30 7:30 AM 8:30 8:30 AM 9:30 9:30 AM 10:30 10:30 AM 11:30 11:30 AM 12:30 12:30 PM 13:30 1:30 PM 14:30 2:30 PM 15:30 3:30 PM 16:30 4:30 PM 17:30 5:30 PM 18:30 6:30 PM 19:30 7:30 PM 20:30 8:30 PM 21:30 9:30 PM 22:30 10:30 PM 23:30 11:30 PM 0:30 12:30 AM 1:30 1:30 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇷 Istanbul | 🇮🇳 Tumkur |
|---|---|---|
| Local time | 05:57 | 08:27 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | GMT+03:00 | India Standard Time |
| UTC offset | UTC+3 | UTC+5:30 |
| Offset from Istanbul | — | +2 h 30 min |
| IANA zone | Europe/Istanbul | Asia/Kolkata |
| Daylight saving | Not observed | Not observed |
| Sunrise | 07:18 | 06:13 |
| Sunset | 18:22 | 18:02 |
| Daylight | 11 h 5 min | 11 h 50 min |
| People on this clock | 15,701,602 | 100,000 |
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 Tumkur: common questions
How many hours ahead of Istanbul is Tumkur?
The clocks in Tumkur are 2 hours and 30 minutes ahead of those in Istanbul (UTC+5:30 and UTC+3).
What time is it in Tumkur at the start of the working day in Istanbul?
The working day in Istanbul starts at 9:00 AM; in Tumkur it is 11:30 AM at that moment.
What time is it in Tumkur at the end of the working day in Istanbul?
The working day in Istanbul ends at 6:00 PM; in Tumkur it is 8:30 PM at that moment.
When do working hours in Istanbul and in Tumkur overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 3:30 PM in Istanbul, which is 11:30 AM to 6:00 PM in Tumkur.
When is it already the next day in Tumkur?
From 9:30 PM in Istanbul it is already the next day in Tumkur. The other way round, until 2:30 AM in Tumkur it is still the previous day in Istanbul.
Does the time difference between Istanbul and Tumkur change?
No. Neither place uses daylight saving time, so the difference stays 2 hours and 30 minutes all year.
