CST (Chicago) vs London — time difference
CST (Chicago) is 6 hours behind London. When CST (Chicago) clocks hit noon, London reads 18:00.
CST (Chicago) runs on America/Chicago; London runs on Europe/London. Together they are 6 hours apart.
Shared working hours
Every working day, CST (Chicago) and London are both in business hours for 2 hours simultaneously.
00:0006:0012:0018:0024:00
Best times to schedule a meeting
There is a 2-hour daily window where both locations are in business hours.
09:00 Chicago / 15:00 London✓ Both working
10:00 Chicago / 16:00 London✓ Both working
Working hours defined as 09:00–17:00 local time for each location.
Holiday calendar for both locations
⚡ Both locations have upcoming holidays, check availability before scheduling.
CST (Chicago)3 holidays
Nov 11Veterans Day
Nov 26Thanksgiving Day
Dec 25Christmas Day
London3 holidays
Nov 30Saint Andrew's Day
Dec 25Christmas Day
Dec 28St. Stephen's Day
Working across CST (Chicago) and London
The 6-hour gap between CST (Chicago) (USA) and London (United Kingdom) requires some planning — but a 2-hour daily overlap means both teams can connect in real time without unusual scheduling.
💡 Best practice for cross-timezone meetings
✅If you are in CST (Chicago), aim for 09:00–10:00, which corresponds to 15:00–16:00 in London — both teams are within working hours.
✅If you are in CST (Chicago), aim for 10:00–11:00, which corresponds to 16:00–17:00 in London — both teams are within working hours.
Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.
Add to your browser — Free →Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am CST (Chicago)".