London, United Kingdom to Chicago
Chicago is 6 hours behind of London.
London
United Kingdom
Day
Difference
Chicago
United States
Day
Best window to call: 15:00 - 17:00 London time, both sides are inside 09:00-17:00.
Hour-by-hour conversion
Every hour of the day in London with its equivalent in Chicago. Green rows fall inside business hours for both.
About the London-Chicago gap
London sits in the Europe/London time zone (BST), while Chicago uses America/Chicago (CDT). That puts Chicago 6 hours behind of London right now.
For scheduling, the practical overlap runs from 15:00 to 17:00 in London. Booking inside that band means neither party is dialling in before breakfast or after dinner.
Related comparisons
- Chicago to London
- London to Cardiff
- London to New York
- London to Los Angeles
- London to São Paulo
- London to Paris
See also current time in London and current time in Chicago.
London and Chicago, questions
- What is the time difference between London and Chicago?
- Chicago is 6 hours behind of London. London is currently on BST and Chicago on CDT.
- What is the best time to call Chicago from London?
- Between 15:00 and 17:00 London time, both cities are inside normal business hours of 09:00 to 17:00. Outside that window one side is either not yet at work or has already left.
- Is the difference between London and Chicago always the same?
- The gap is mostly stable, but if both cities observe daylight saving they may not switch on the same date, there are usually a few weeks each spring and autumn when the difference shifts by an hour.