Chicago to London Time Converter
Chicago is 6 hours behind
Frequently Asked Questions
How many hours difference between Chicago and London?
The offset is 6 hours — Chicago is behind London. Timezones: America/Chicago and Europe/London.
What is the best time to schedule a call between Chicago and London?
There is a 2 hours window where both locations are within standard business hours (09:00–17:00). Best time: around 09:00 Chicago / 15:00 London.
Will DST change the time gap between Chicago and London?
No DST changes are expected in the next 7 days for either Chicago or London. The 6 hours difference is stable.
What is the London equivalent of 12:00 PM Chicago time?
Noon in Chicago corresponds to 6:00 PM in London.
How does the Chicago to London time converter work?
Type any time in the input bar (e.g. "9am", "14:30") or use the slider. All locations including London update at the same time.
Does Chicago have holidays coming up that could affect scheduling?
Yes — Chicago has an upcoming public holiday: Independence Day on July 3. Check the holiday panel above before confirming meetings.
What timezone is Chicago in, and what timezone is London in?
Chicago runs on America/Chicago (IANA) and London on Europe/London (IANA) — a 6 hours gap between them.
End of day in Chicago — what time is that for someone in London?
5 PM Chicago → 11:00 PM London. Your London contact has likely finished for the day — expect a reply next morning.
Quick time conversions: Chicago → London
Common reference points to help you plan across the time difference.
Setting a 12:00 PM alarm in Chicago? That's 6:00 PM for London.
Chicago 10:00 AM — what's that in London?—4:00 PM
7:00 AMin Chicago→1:00 PMin London
When Chicago clocks show 5:00 PM, London reads 11:00 PM.
6:00 AMin Chicago→12:00 PMin London
Chicago ↔ London
2h of business hours overlap daily (09:00–17:00)
Chicago
London
Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.