Altena to Istanbul time converter

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

Altena CEST

Tuesday, October 20, 2026

Istanbul TRT

Tuesday, October 20, 2026

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

Altena to Istanbul conversion table

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

AltenaIstanbul
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 Altena (10:00 AM – 6:00 PM in Istanbul).

Daylight saving time and the difference

The difference changes during the year because Altena and Istanbul 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

Altena and Istanbul are 1,986 km (1,234 miles) apart in a straight line.

More conversions

Istanbul to AltenaAltena to New YorkAltena to LondonAltena to Los AngelesAltena to ChicagoAltena to TorontoAltena to São PauloAltena to ParisAltena to BerlinAltena to MoscowAltena to DubaiAltena to New DelhiAltena 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 Altena and Istanbul?

Istanbul is 1 hour ahead of Altena.

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

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

When is the best time to call Istanbul from Altena?

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

Does the time difference between Altena 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.