Kolkata to Chicago Time Converter
Chicago is 11 hours 30 minutes behind Kolkata right now. 9:00 AM in Kolkata is 9:30 PM in Chicago (the day before).
Time now: Kolkata and Chicago
Chicago is 11 hours 30 minutes behind Kolkata right now. The gap is not fixed: it is 11 hours 30 minutes at some times of the year and 10 hours 30 minutes at others, because at least one of them changes its clocks for daylight saving time.
Kolkata and Chicago are about 12,841 km (7,979 miles) apart in a straight line. Right now Kolkata is on IST (UTC+05:30) and Chicago is on CST (UTC-06:00).
Kolkata to Chicago conversion table
Every hour of the day, using today's time difference.
| Kolkata | Chicago |
|---|---|
| 12:00 AM | 12:30 PMprevious day |
| 1:00 AM | 1:30 PMprevious day |
| 2:00 AM | 2:30 PMprevious day |
| 3:00 AM | 3:30 PMprevious day |
| 4:00 AM | 4:30 PMprevious day |
| 5:00 AM | 5:30 PMprevious day |
| 6:00 AM | 6:30 PMprevious day |
| 7:00 AM | 7:30 PMprevious day |
| 8:00 AM | 8:30 PMprevious day |
| 9:00 AM | 9:30 PMprevious day |
| 10:00 AM | 10:30 PMprevious day |
| 11:00 AM | 11:30 PMprevious day |
| 12:00 PM | 12:30 AM |
| 1:00 PM | 1:30 AM |
| 2:00 PM | 2:30 AM |
| 3:00 PM | 3:30 AM |
| 4:00 PM | 4:30 AM |
| 5:00 PM | 5:30 AM |
| 6:00 PM | 6:30 AM |
| 7:00 PM | 7:30 AM |
| 8:00 PM | 8:30 AM |
| 9:00 PM | 9:30 AM |
| 10:00 PM | 10:30 AM |
| 11:00 PM | 11:30 AM |
Best time to meet between Kolkata and Chicago
There is no overlap between 9 AM and 6 PM in both places.
If both sides can be flexible (7 AM – 10 PM):
- 7:00 AM – 10:00 AM Kolkata = 7:30 PM – 10:30 PM Chicago
- 7:00 PM – 10:00 PM Kolkata = 7:30 AM – 10:30 AM Chicago
The time difference changes during the year because of daylight saving time, so these windows shift by an hour at other times.
Does the time difference between Kolkata and Chicago change?
Yes. Right now Chicago is 11 hours 30 minutes behind Kolkata. These are the dates in the next 12 months when the gap changes:
- Sunday, 14 March 2027: Chicago moves its clocks forward. Chicago is 10 hours 30 minutes behind Kolkata from then (it was 11 hours 30 minutes before).
- Sunday, 7 November 2027: Chicago moves its clocks back. Chicago is 11 hours 30 minutes behind Kolkata from then (it was 10 hours 30 minutes before).
Office hours in each other's time
- 9 AM to 6 PM in Kolkata is 9:30 PM (previous day) to 6:30 AM in Chicago.
- 9 AM to 6 PM in Chicago is 8:30 PM to 5:30 AM (next day) in Kolkata.
Based on today's clock settings.
Frequently asked questions
What is the time difference between Kolkata and Chicago?
Chicago is 11 hours 30 minutes behind Kolkata right now. The gap is not fixed: it is 11 hours 30 minutes at some times of the year and 10 hours 30 minutes at others, because at least one of them changes its clocks for daylight saving time.
How do I convert Kolkata to Chicago?
Subtract 11 hours 30 minutes from the Kolkata time to get the Chicago time (at today's difference). 9:00 AM in Kolkata is 9:30 PM in Chicago (the day before). Or use the converter above and pick any date and time.
What is the current time in Chicago?
It is 5:21 PM in Chicago on Monday, November 9 (the converter above shows it live). At the same moment it is 4:51 AM in Kolkata.
Does the time difference between Kolkata and Chicago change during the year?
Yes. Right now Chicago is 11 hours 30 minutes behind Kolkata. Over the next 12 months the gap changes 2 times: Sunday, 14 March 2027: Chicago moves its clocks forward. Chicago is 10 hours 30 minutes behind Kolkata from then (it was 11 hours 30 minutes before). Sunday, 7 November 2027: Chicago moves its clocks back. Chicago is 11 hours 30 minutes behind Kolkata from then (it was 10 hours 30 minutes before).
What is the best time for a meeting between Kolkata and Chicago?
The two places have no shared working hours (9 AM – 6 PM). The nearest option is 7:00 AM – 10:00 AM Kolkata = 7:30 PM – 10:30 PM Chicago.