Custoias to Istanbul time converter

Istanbul is 2 hours ahead of Custoias. When it is 9:00 AM in Custoias, it is 11:00 AM in Istanbul.

Custoias WEST

Tuesday, October 20, 2026

Istanbul TRT

Tuesday, October 20, 2026

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

Custoias to Istanbul conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 4:00 PM in Custoias (11:00 AM – 6:00 PM in Istanbul).

Daylight saving time and the difference

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

  • Oct 20, 2026 – Oct 25, 2026: +2h
  • Oct 25, 2026 – Mar 28, 2027: +3h
  • Mar 28, 2027 – Oct 20, 2027: +2h

Distance

Custoias and Istanbul are 3,019 km (1,876 miles) apart in a straight line.

More conversions

Istanbul to CustoiasCustoias to New YorkCustoias to LondonCustoias to Los AngelesCustoias to ChicagoCustoias to TorontoCustoias to São PauloCustoias to ParisCustoias to BerlinCustoias to MoscowCustoias to DubaiCustoias to New DelhiCustoias 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 Custoias and Istanbul?

Istanbul is 2 hours ahead of Custoias.

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

When it is 9:00 AM in Custoias, it is 11:00 AM in Istanbul.

When is the best time to call Istanbul from Custoias?

Both sides are at work from 9:00 AM – 4:00 PM in Custoias (11:00 AM – 6:00 PM in Istanbul).

Does the time difference between Custoias 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.