Atlanta is 1 hour ahead of Chicago. Atlanta uses Eastern Time (EST, UTC-5) while Chicago uses Central Time (CST, UTC-6). When it's 10:00 AM in Atlanta, it's 9:00 AM in Chicago.
Both cities observe daylight saving time on the same schedule, so the 1-hour difference remains consistent year-round.
Any business hour works! With just 1 hour difference, scheduling calls between 9:00 AM - 5:00 PM in either city easily overlaps with business hours in the other.
Atlanta and Chicago are both major business and transportation hubs. Direct flights between them take about 2 hours.