Chicago to Kolkata Time Difference
🇺🇸 Chicago is currently 10.5 hours ahead of 🇮🇳 Kolkata. This difference varies between 10.5h and 11.5h due to Daylight Saving Time.
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Difference
+10.5h
Business overlap
None
Distance
12,837 km
Approx. flight
15.1h
Hour-by-Hour: Chicago to Kolkata
| 🇺🇸 Chicago | 🇮🇳 Kolkata | Note |
|---|---|---|
| 12:00 AM | 10:30 AM | |
| 1:00 AM | 11:30 AM | |
| 2:00 AM | 12:30 PM | |
| 3:00 AM | 1:30 PM | |
| 4:00 AM | 2:30 PM | |
| 5:00 AM | 3:30 PM | |
| 6:00 AM | 4:30 PM | |
| 7:00 AM | 5:30 PM | |
| 8:00 AM | 6:30 PM | |
| 9:00 AM | 7:30 PM | |
| 10:00 AM | 8:30 PM | |
| 11:00 AM | 9:30 PM | |
| 12:00 PM | 10:30 PM | |
| 1:00 PM | 11:30 PM | |
| 2:00 PM | 12:30 AM(next day) | Next day |
| 3:00 PM | 1:30 AM(next day) | Next day |
| 4:00 PM | 2:30 AM(next day) | Next day |
| 5:00 PM | 3:30 AM(next day) | Next day |
| 6:00 PM | 4:30 AM(next day) | Next day |
| 7:00 PM | 5:30 AM(next day) | Next day |
| 8:00 PM | 6:30 AM(next day) | Next day |
| 9:00 PM | 7:30 AM(next day) | Next day |
| 10:00 PM | 8:30 AM(next day) | Next day |
| 11:00 PM | 9:30 AM(next day) | Next day |
Daylight Saving Time (DST)
Chicago observes Daylight Saving Time, while Kolkata does not. This causes the time difference to shift between 10.5 hours ahead and 11.5 hours ahead depending on the season. Currently, Chicago is 10.5 hours ahead relative to Kolkata.
Min difference
10.5h
Max difference
11.5h
Best Meeting Times
There is no overlap between standard business hours (9 AM – 6 PM) in Chicago and Kolkata. Consider scheduling early morning or late evening calls to bridge the gap.
Frequently Asked Questions
What is the time difference between Chicago and Kolkata?
The time difference between Chicago and Kolkata is currently 10.5 hours ahead. Chicago uses CDT (UTC-5), while Kolkata uses GMT+5:30 (UTC+5:30). This difference varies seasonally due to Daylight Saving Time, ranging from 10.5 hours ahead to 11.5 hours ahead.
When it's noon in Chicago, what time is it in Kolkata?
When it's 12:00 PM (noon) in Chicago, it is 10:30 PM in Kolkata. Use our calculator above to convert any other time.
Does the time difference between Chicago and Kolkata change?
Yes, the time difference changes throughout the year. Because Chicago observes Daylight Saving Time, the offset shifts between 10.5 hours ahead and 11.5 hours ahead at different times of the year.
What are the best times to schedule a call between Chicago and Kolkata?
There is no overlap between standard business hours (9 AM – 6 PM) in Chicago and Kolkata. Consider scheduling early morning in one city or late evening in the other to find a mutually reasonable time.
Is Chicago ahead or behind Kolkata?
Chicago is currently 10.5 hours behind Kolkata.
What time zone is Chicago in?
Chicago is in the America/Chicago time zone, currently using CDT (UTC-5). Chicago observes Daylight Saving Time, so the offset changes twice a year.
What time is midnight in Chicago in Kolkata?
When it is midnight (12:00 AM) in Chicago, it is 10:30 AM in Kolkata.