London to Chicago time

Time difference between London and Chicago

Chicago is 6 hours behind London. London is on Greenwich Mean Time (GMT (UTC+00:00)) and Chicago is on Central Standard Time (CST (UTC−06:00)).

The gap stays the same all year, because the two time zones never change relative to each other.

Convert London time to Chicago time

These examples use the current offsets, UTC+00:00 for London and UTC−06:00 for Chicago. Use the converter above for any other time or date.

Chicago is behind, so from midnight to 6:00 AM in London it is still the previous calendar day in Chicago.

Best time to call or meet: London and Chicago working hours

Taking 9:00 AM to 5:00 PM, Monday to Friday, as business hours, both cities are at work from 3:00 PM to 5:00 PM in London (9:00 AM to 11:00 AM in Chicago). That is 2 hours of shared working time each weekday.

Weekends, public holidays and local working weeks differ by country, so check those before booking.

Daylight saving time in London and Chicago

London observes daylight saving time. Its next change is on Mar 28, 2027 at 1:00 AM, when clocks go forward 1 hour (UTC+00:00 to UTC+01:00).

Chicago observes daylight saving time. Its next change is on Mar 14, 2027 at 2:00 AM, when clocks go forward 1 hour (UTC−06:00 to UTC−05:00).

London and Chicago change their clocks on different dates, so the time difference between them shifts for a few weeks around those changes. Check the converter for the exact date you need.