Time Difference: Chicago to London
Click a time to convert
Chicago vs London timezone guide
Chicago (US) uses the America/Chicago timezone at UTC-6, while London (UK) uses Europe/London at UTC+0. This means London is 6 hours ahead of Chicago (based on standard offsets — the live difference above accounts for daylight saving time).
Best meeting times between Chicago and London
Standard 9-to-5 working hours overlap by 2 hours per day. The shared window is 9am–11am in Chicago, which is 3pm–5pm in London. Schedule recurring meetings inside that window and both teams stay inside standard working hours.
Hour-by-hour planner
| Chicago | London | Status |
|---|---|---|
| 6am | 12pm | One side outside 9-to-5 but still awake |
| 7am | 1pm | One side outside 9-to-5 but still awake |
| 8am | 2pm | One side outside 9-to-5 but still awake |
| 9am | 3pm | Both at work — ideal meeting time |
| 10am | 4pm | Both at work — ideal meeting time |
| 11am | 5pm | One side outside 9-to-5 but still awake |
| 12pm | 6pm | One side outside 9-to-5 but still awake |
| 1pm | 7pm | One side outside 9-to-5 but still awake |
| 2pm | 8pm | One side outside 9-to-5 but still awake |
| 3pm | 9pm | One side outside 9-to-5 but still awake |
| 4pm | 10pm | Chicago working hours, London late evening |
| 5pm | 11pm | Chicago evening, London late evening |
| 6pm | 12am | Chicago evening, London asleep |
| 7pm | 1am | Chicago evening, London asleep |
| 8pm | 2am | Chicago evening, London asleep |
| 9pm | 3am | Chicago evening, London asleep |
| 10pm | 4am | Chicago late evening, London asleep |
Green = standard working hours (9 AM – 5 PM). Amber = early (6–9 AM). Orange = evening (5–10 PM). Grey = asleep or late.
Daylight saving time between Chicago and London
Both cities observe daylight saving time, but on different schedules. This creates short windows each year where the usual difference of 6 hours behind temporarily shifts.
- Mar 8 → Mar 28Difference temporarily 5 hours behind.
- Oct 24 → Nov 1Difference temporarily 5 hours behind.
Chicago transitions on March 8, 2026 and November 1, 2026. London transitions on March 29, 2026 and October 25, 2026.
Distance between Chicago and London
Chicago and London are 6,353 km apart along the great-circle route. A direct flight takes roughly ~8h 28m, depending on aircraft type, winds, and routing.