Indianapolis is 1 hour ahead of Chicago. Indianapolis uses Eastern Time (EST/EDT) while Chicago uses Central Time (CST/CDT). When it's 12:00 PM in Indianapolis, it's 11:00 AM in Chicago.
Both cities observe daylight saving time on the same schedule, so the 1-hour difference remains constant year-round.
Best calling time: 10:00 AM - 6:00 PM Indianapolis time. This corresponds to 9:00 AM - 5:00 PM in Chicago, covering Chicago business hours.
Indianapolis and Chicago are neighboring Midwest cities, connected by a 3-hour drive along I-65. Both are major sports cities and have strong business ties, with many Indianapolis residents commuting to Chicago for work.