Chicago, United States Kolkata, India
Compare time between Chicago and Kolkata
Frequently Asked Questions
Chicago is in the CDT timezone (UTC-5) and Kolkata is in the IST timezone (UTC+5:30). The time difference between them is 10h 30m.
Use the timeline above to find overlapping business hours between Chicago and Kolkata. The "Best time to meet" card highlights the window where both cities are within working hours (9 AM – 6 PM local time).
Chicago observes Daylight Saving Time, while Kolkata does not. When DST is active in Chicago, the time difference changes by 1 hour.
Click the pencil icon next to the Chicago clock and type any time. The Kolkata clock will update instantly, showing the exact corresponding time. You can also pick a date to account for DST changes.