Time Difference Between Chicago and London
6 hours London is ahead of Chicago
Chicago is 5 hours behind London. The UTC offset for Chicago is -05:00 and for London it is +00:00. Standard business hours overlap from roughly 9am to 12pm Chicago time, giving teams a workable window for meetings and calls. Both United States and United Kingdom observe daylight saving time, though not always on the same schedule, so the difference can shift by an hour during transitions.
Traders and corporate teams working across Chicago and London often catch early morning sessions to align with each other’s market hours. A morning standup at 9am in Chicago lands at 4am in London. Understanding the exact offset helps financial professionals time their calls during active trading hours in both markets.
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Try Cal.com - What is the time difference between Chicago and London?
- Chicago is 5 hours behind London. When it is noon in London, it is 7am in Chicago.
- Do Chicago and London share business hours?
- Standard business hours (9am to 5pm) overlap from approximately 9am to 12pm Chicago time (2pm to 5pm London time). Teams should schedule key meetings within this window.
- Do daylight saving time changes affect the difference between Chicago and London?
- Both United States and United Kingdom observe daylight saving time, but their transition dates may differ. During the weeks when one country has changed clocks and the other has not, the offset shifts by one hour temporarily.