Chicago to Diamond Harbour time converter

Diamond Harbour is 10 hours 30 minutes ahead of Chicago. When it is 9:00 AM in Chicago, it is 7:30 PM in Diamond Harbour.

Chicago CDT

Monday, October 19, 2026

Diamond Harbour IST

Monday, October 19, 2026

Chicago
Illinois, United States
Mon, Oct 19
CDTUTC-5
Diamond Harbour
West Bengal, India
Mon, Oct 19
ISTUTC+5:30+10h 30m
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Diamond Harbour conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 9:00 AM – 11:30 AM in Chicago (7:30 PM – 10:00 PM in Diamond Harbour): 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 Diamond Harbour switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: +10h 30m
  • Nov 1, 2026 – Mar 14, 2027: +11h 30m
  • Mar 14, 2027 – Oct 19, 2027: +10h 30m

Distance

Chicago and Diamond Harbour are 12,881 km (8,004 miles) apart in a straight line.

More conversions

Diamond Harbour 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 Diamond HarbourLondon to Diamond HarbourLos Angeles to Diamond HarbourToronto to Diamond HarbourSão Paulo to Diamond HarbourParis to Diamond HarbourBerlin to Diamond HarbourMoscow to Diamond HarbourDubai to Diamond HarbourNew Delhi to Diamond HarbourBangkok to Diamond HarbourSingapore to Diamond Harbour

Questions and answers

What is the time difference between Chicago and Diamond Harbour?

Diamond Harbour is 10 hours 30 minutes ahead of Chicago.

What time is it in Diamond Harbour when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 7:30 PM in Diamond Harbour.

When is the best time to call Diamond Harbour from Chicago?

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

Does the time difference between Chicago and Diamond Harbour change?

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