Time difference between Chicago and London
London is 6 hours ahead of Chicago
Right now
Chicago
11:38
CDT ·
UTC-5
London
17:38
BST ·
UTC+1
Best time for a call between Chicago and London
Hours highlighted in green work for everyone on the list.
- 09:00 Chicago 15:00 London
- 10:00 Chicago 16:00 London
- 08:00 Chicago 14:00 London
Hour by hour: Chicago to London
Working hours are shaded. The rows marked with a star are the ones we recommend for a call.
| Chicago (reference) | London | |
|---|---|---|
| 00:00 | 06:00 | |
| 01:00 | 07:00 | |
| 02:00 | 08:00 | |
| 03:00 | 09:00 | |
| 04:00 | 10:00 | |
| 05:00 | 11:00 | |
| 06:00 | 12:00 | |
| 07:00 | 13:00 | |
| ★ | 08:00 | 14:00 |
| ★ | 09:00 | 15:00 |
| ★ | 10:00 | 16:00 |
| 11:00 | 17:00 | |
| 12:00 | 18:00 | |
| 13:00 | 19:00 | |
| 14:00 | 20:00 | |
| 15:00 | 21:00 | |
| 16:00 | 22:00 | |
| 17:00 | 23:00 | |
| 18:00 | 00:00 (next day) | |
| 19:00 | 01:00 (next day) | |
| 20:00 | 02:00 (next day) | |
| 21:00 | 03:00 (next day) | |
| 22:00 | 04:00 (next day) | |
| 23:00 | 05:00 (next day) |
Table built for August 26, 2026. The live values above update in your browser.
Daylight saving time
Both cities change their clocks, but not always on the same date — the difference between them shifts for a few weeks each year.
Frequently asked questions
What is the time difference between Chicago and London?
London is 6 hours ahead of Chicago
What is the best time to call between Chicago and London?
The most convenient slot is 09:00 Chicago / 15:00 London. That keeps the call inside working hours in both cities.
Does the difference between Chicago and London change during the year?
Both cities change their clocks, but not always on the same date — the difference between them shifts for a few weeks each year.