There is no time difference between Chicago and Milwaukee. Both cities use Central Time (CT, UTC-6/-5). When it's 12:00 PM in Chicago, it's also 12:00 PM in Milwaukee.
Both cities observe daylight saving time on the same schedule, so they remain synchronized year-round.
Any time works! Since both cities share the same timezone, you can schedule calls during standard business hours (9:00 AM - 6:00 PM) without any time conversion needed.
Chicago and Milwaukee are neighboring Great Lakes cities just 90 miles apart. Many people commute between them via the Amtrak Hiawatha train or by car on I-94. Both cities share strong manufacturing heritage and growing tech sectors.