Chicago ↔ London time converter
London is 6 hours ahead of Chicago.
Type a time in either city — 4pm, 4:30 PM and 16:00 all work — or pick one from the ▾ menu, and the other city updates instantly. The clocks load showing the current time in Chicago, United States and London, United Kingdom.
Chicago
United States
America/Chicago
London
United Kingdom
Europe/London
Business-hours overlap
Working day (9:00–17:00) in each city, drawn on Chicago's clock.
Chicago 9–17
London 9–17
Overlap
Zone details
- Chicago
- America/Chicago
- London
- Europe/London
- Offset
- —
- DST
- Both Chicago and London observe daylight saving time, so the gap between them can shift for a few weeks around the spring and autumn transitions.
For example, 4:00 PM in Chicago is 10:00 PM in London, while 4:00 PM in London is 10:00 AM in Chicago.