Chicago to Iran time converter

Iran is 8 hours 30 minutes ahead of Chicago. When it is 9:00 AM in Chicago, it is 5:30 PM in Iran.

Chicago CDT

Friday, October 16, 2026

Iran IRST

Saturday, October 17, 2026

Chicago
Illinois, United States
Fri, Oct 16
CDTUTC-5
Iran
Sat, Oct 17
IRSTUTC+3:30+8h 30m
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Iran conversion table

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

ChicagoIran
12:00 AM8:30 AM
1:00 AM9:30 AM
2:00 AM10:30 AM
3:00 AM11:30 AM
4:00 AM12:30 PM
5:00 AM1:30 PM
6:00 AM2:30 PM
7:00 AM3:30 PM
8:00 AM4:30 PM
9:00 AM5:30 PM
10:00 AM6:30 PM
11:00 AM7:30 PM
12:00 PM8:30 PM
1:00 PM9:30 PM
2:00 PM10:30 PM
3:00 PM11:30 PM
4:00 PM12:30 AM+1 day
5:00 PM1:30 AM+1 day
6:00 PM2:30 AM+1 day
7:00 PM3:30 AM+1 day
8:00 PM4:30 AM+1 day
9:00 PM5:30 AM+1 day
10:00 PM6:30 AM+1 day
11:00 PM7:30 AM+1 day

Best time to call or meet

Working hours don't overlap fully. The closest fit is 7:00 AM – 1:30 PM in Chicago (3:30 PM – 10:00 PM in Iran): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because Chicago and Iran switch clocks on different dates:

  • Oct 16, 2026 – Nov 1, 2026: +8h 30m
  • Nov 1, 2026 – Mar 14, 2027: +9h 30m
  • Mar 14, 2027 – Oct 16, 2027: +8h 30m

More conversions

Iran to ChicagoChicago to New YorkChicago to LondonChicago to Los AngelesChicago to TorontoChicago to São PauloChicago to ParisChicago to BerlinChicago to MoscowChicago to DubaiChicago to New DelhiChicago to BangkokChicago to Singapore
New York to IranLondon to IranLos Angeles to IranToronto to IranSão Paulo to IranParis to IranBerlin to IranMoscow to IranDubai to IranNew Delhi to IranBangkok to IranSingapore to Iran

Questions and answers

What is the time difference between Chicago and Iran?

Iran is 8 hours 30 minutes ahead of Chicago.

What time is it in Iran when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 5:30 PM in Iran.

When is the best time to call Iran from Chicago?

Working hours don't overlap fully. The closest fit is 7:00 AM – 1:30 PM in Chicago (3:30 PM – 10:00 PM in Iran): working hours on one side, early or late on the other.

Does the time difference between Chicago and Iran change?

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