Istanbul to Alton time converter

Alton is 2 hours behind Istanbul. When it is 9:00 AM in Istanbul, it is 7:00 AM in Alton.

Istanbul TRT

Wednesday, October 21, 2026

Alton BST

Wednesday, October 21, 2026

Istanbul
Turkey
Wed, Oct 21
TRTUTC+3
Alton
United Kingdom
Wed, Oct 21
BSTUTC+1-2h
Finding your time zone…
Shared working hours (9:00–18:00)

Istanbul to Alton conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 21, 2026 – Oct 25, 2026: -2h
  • Oct 25, 2026 – Mar 28, 2027: -3h
  • Mar 28, 2027 – Oct 21, 2027: -2h

Distance

Istanbul and Alton are 2,545 km (1,581 miles) apart in a straight line.

More conversions

Alton 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 AltonLondon to AltonLos Angeles to AltonChicago to AltonToronto to AltonSão Paulo to AltonParis to AltonBerlin to AltonMoscow to AltonDubai to AltonNew Delhi to AltonBangkok to Alton

Questions and answers

What is the time difference between Istanbul and Alton?

Alton is 2 hours behind Istanbul.

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

When it is 9:00 AM in Istanbul, it is 7:00 AM in Alton.

When is the best time to call Alton from Istanbul?

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

Does the time difference between Istanbul and Alton change?

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