Cologne to Istanbul time converter

Istanbul is 1 hour ahead of Cologne. When it is 9:00 AM in Cologne, it is 10:00 AM in Istanbul.

Cologne CEST

Monday, October 19, 2026

Istanbul TRT

Monday, October 19, 2026

Cologne
Germany
Mon, Oct 19
CESTUTC+2
Istanbul
Turkey
Mon, Oct 19
TRTUTC+3+1h
Finding your time zone…
Shared working hours (9:00–18:00)

Cologne to Istanbul conversion table

Every hour of today in Cologne and the matching time in Istanbul. Light rows are typical working hours (9:00–18:00).

CologneIstanbul
12:00 AM1:00 AM
1:00 AM2:00 AM
2:00 AM3:00 AM
3:00 AM4:00 AM
4:00 AM5:00 AM
5:00 AM6:00 AM
6:00 AM7:00 AM
7:00 AM8:00 AM
8:00 AM9:00 AM
9:00 AM10:00 AM
10:00 AM11:00 AM
11:00 AM12:00 PM
12:00 PM1:00 PM
1:00 PM2:00 PM
2:00 PM3:00 PM
3:00 PM4:00 PM
4:00 PM5:00 PM
5:00 PM6:00 PM
6:00 PM7:00 PM
7:00 PM8:00 PM
8:00 PM9:00 PM
9:00 PM10:00 PM
10:00 PM11:00 PM
11:00 PM12:00 AM+1 day

Best time to call or meet

Both sides are at work from 9:00 AM – 5:00 PM in Cologne (10:00 AM – 6:00 PM in Istanbul).

Daylight saving time and the difference

The difference changes during the year because Cologne and Istanbul switch clocks on different dates:

  • Oct 19, 2026 – Oct 25, 2026: +1h
  • Oct 25, 2026 – Mar 28, 2027: +2h
  • Mar 28, 2027 – Oct 19, 2027: +1h

Distance

Cologne and Istanbul are 2,014 km (1,251 miles) apart in a straight line.

More conversions

Istanbul to CologneCologne to New YorkCologne to LondonCologne to Los AngelesCologne to ChicagoCologne to TorontoCologne to São PauloCologne to ParisCologne to BerlinCologne to MoscowCologne to DubaiCologne to New DelhiCologne to Bangkok
New York to IstanbulLondon to IstanbulLos Angeles to IstanbulChicago to IstanbulToronto to IstanbulSão Paulo to IstanbulParis to IstanbulBerlin to IstanbulMoscow to IstanbulDubai to IstanbulNew Delhi to IstanbulBangkok to Istanbul

Questions and answers

What is the time difference between Cologne and Istanbul?

Istanbul is 1 hour ahead of Cologne.

What time is it in Istanbul when it is 9 AM in Cologne?

When it is 9:00 AM in Cologne, it is 10:00 AM in Istanbul.

When is the best time to call Istanbul from Cologne?

Both sides are at work from 9:00 AM – 5:00 PM in Cologne (10:00 AM – 6:00 PM in Istanbul).

Does the time difference between Cologne and Istanbul change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.