Time difference between Chicago and London
Chicago is 6 h behind London.
See the current local time in Chicago and London side by side. The difference updates live and automatically accounts for daylight saving time.
When it is 12:00 noon in Chicago, the clock in London shows 18:00. For meetings within business hours (9:00–17:00), the shared window is 09:00–11:00 Chicago time. As the crow flies, the two cities are about 6,360 km (3,950 mi) apart — roughly 8 h nonstop by plane.