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Kolkata is 10.5 hours ahead of Chicago

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

Set against a 10.5-hour difference, Chicago and Kolkata run their workdays on completely separate schedules. Block a single recurring off-hours slot that both teams agree on, rather than negotiating a new awkward time every week. 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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Chicago
America/Chicago
Kolkata
Asia/Kolkata

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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