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Chicago is 10.5 hours behind Kolkata

There is no standard 8-to-6 overlap. Someone joins early or late.

Because Chicago is 10.5 hours behind Kolkata, the two offices are essentially never open at the same time. If a live call is essential, aim for the very start or very end of a workday in one city and accept it'll be off-hours for the other. Daylight saving complicates things slightly: Chicago observes it, Kolkata doesn't, so the difference flexes by an hour part of the year.

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Kolkata
Asia/Kolkata
Chicago
America/Chicago

Frequently Asked Questions

What is the time difference between Chicago and Kolkata?
Kolkata is 10.5 hours ahead of Chicago.
What are the best overlapping working hours between Chicago and Kolkata?
Unfortunately, there are no standard overlapping working hours (8 AM to 6 PM) between Chicago and Kolkata. You will likely need to schedule meetings outside of regular office hours.
How many hours overlap between Chicago and Kolkata during a typical workday?
Unfortunately, there are no overlapping work hours. Someone will usually need to join earlier or later than a normal workday.
Does Daylight Saving Time affect the time difference between Chicago and Kolkata?
Chicago observes Daylight Saving Time, but Kolkata does not. This means the time difference between the two locations will change during the year.

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