Istanbul to Aachen time converter

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

Istanbul TRT

Tuesday, October 20, 2026

Aachen CEST

Tuesday, October 20, 2026

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

Istanbul to Aachen conversion table

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

IstanbulAachen
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 Aachen).

Daylight saving time and the difference

The difference changes during the year because Istanbul and Aachen 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 Aachen are 2,063 km (1,282 miles) apart in a straight line.

More conversions

Aachen 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 AachenLondon to AachenLos Angeles to AachenChicago to AachenToronto to AachenSão Paulo to AachenParis to AachenBerlin to AachenMoscow to AachenDubai to AachenNew Delhi to AachenBangkok to Aachen

Questions and answers

What is the time difference between Istanbul and Aachen?

Aachen is 1 hour behind Istanbul.

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

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

When is the best time to call Aachen from Istanbul?

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

Does the time difference between Istanbul and Aachen change?

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