Chennai to Chicago time converter

Chicago is 10 hours 30 minutes behind Chennai. When it is 9:00 AM in Chennai, it is 10:30 PM (Fri, Oct 16) in Chicago.

Chennai IST

Saturday, October 17, 2026

Chicago CDT

Friday, October 16, 2026

Chennai
Tamil Nadu, India
Sat, Oct 17
ISTUTC+5:30
Chicago
Illinois, United States
Fri, Oct 16
CDTUTC-5-10h 30m
Finding your time zone…
Shared working hours (9:00–18:00)

Chennai to Chicago conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 7:30 PM – 10:00 PM in Chennai (9:00 AM – 11:30 AM in Chicago): working hours on one side, early or late on the other.

Daylight saving time and the difference

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

  • Oct 17, 2026 – Nov 1, 2026: -10h 30m
  • Nov 1, 2026 – Mar 14, 2027: -11h 30m
  • Mar 14, 2027 – Oct 17, 2027: -10h 30m

Distance

Chennai and Chicago are 13,782 km (8,564 miles) apart in a straight line.

More conversions

Chicago to ChennaiChennai to New YorkChennai to LondonChennai to Los AngelesChennai to TorontoChennai to São PauloChennai to ParisChennai to BerlinChennai to MoscowChennai to DubaiChennai to New DelhiChennai to BangkokChennai to Singapore
New York to ChicagoLondon to ChicagoLos Angeles to ChicagoToronto to ChicagoSão Paulo to ChicagoParis to ChicagoBerlin to ChicagoMoscow to ChicagoDubai to ChicagoNew Delhi to ChicagoBangkok to ChicagoSingapore to Chicago

Questions and answers

What is the time difference between Chennai and Chicago?

Chicago is 10 hours 30 minutes behind Chennai.

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

When it is 9:00 AM in Chennai, it is 10:30 PM (Fri, Oct 16) in Chicago.

When is the best time to call Chicago from Chennai?

Working hours don't overlap fully. The closest fit is 7:30 PM – 10:00 PM in Chennai (9:00 AM – 11:30 AM in Chicago): working hours on one side, early or late on the other.

Does the time difference between Chennai and Chicago change?

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