Istanbul to Kościan time converter

Kościan is 1 hour behind Istanbul. When it is 9:00 AM in Istanbul, it is 8:00 AM in Kościan.

Istanbul TRT

Tuesday, October 20, 2026

Kościan CEST

Tuesday, October 20, 2026

Istanbul
Turkey
Tue, Oct 20
TRTUTC+3
Kościan
Poland
Tue, Oct 20
CESTUTC+2-1h
Finding your time zone…
Shared working hours (9:00–18:00)

Istanbul to Kościan conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 20, 2026 – Oct 25, 2026: -1h
  • Oct 25, 2026 – Mar 28, 2027: -2h
  • Mar 28, 2027 – Oct 20, 2027: -1h

Distance

Istanbul and Kościan are 1,545 km (960 miles) apart in a straight line.

More conversions

Kościan to IstanbulIstanbul to New YorkIstanbul to LondonIstanbul to Los AngelesIstanbul to ChicagoIstanbul to TorontoIstanbul to São PauloIstanbul to ParisIstanbul to BerlinIstanbul to MoscowIstanbul to DubaiIstanbul to New DelhiIstanbul to Bangkok
New York to KościanLondon to KościanLos Angeles to KościanChicago to KościanToronto to KościanSão Paulo to KościanParis to KościanBerlin to KościanMoscow to KościanDubai to KościanNew Delhi to KościanBangkok to Kościan

Questions and answers

What is the time difference between Istanbul and Kościan?

Kościan is 1 hour behind Istanbul.

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

When it is 9:00 AM in Istanbul, it is 8:00 AM in Kościan.

When is the best time to call Kościan from Istanbul?

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

Does the time difference between Istanbul and Kościan change?

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