Bangalore is 11 hours 30 minutes ahead of Chicago (or 10 hours 30 minutes during CDT). Bangalore uses India Standard Time (IST, UTC+5:30) while Chicago uses Central Time (CT, UTC-6/-5). When it's 12:00 PM in Bangalore, it's 12:30 AM in Chicago.
Chicago observes daylight saving time while India does not, so the difference varies between 10.5 and 11.5 hours throughout the year.
Best calling time: 7:30 PM - 10:30 PM Bangalore time. This corresponds to 8:00 AM - 11:00 AM in Chicago, catching morning business hours in the Midwest.
Bangalore and Chicago have strong business connections, especially in IT services and finance. Many Indian IT companies serve Chicago-based clients, and several Chicago corporations have development centers in Bangalore. The significant time difference requires evening calls from India.