Convert time between Chicago, United States and London, United Kingdom — instantly and accurately, including Daylight Saving Time.
Open live converter for Chicago ↔ London →Chicago (CDT, America/Chicago) is currently 6 hours behind London (GMT+1, Europe/London).
Best meeting window: roughly 9:00 AM–12:00 PM CDT (3:00 PM–6:00 PM GMT+1), when both cities are within normal business hours.
| Chicago (CDT) | London (GMT+1) | |
|---|---|---|
| 12:00 AM | 6:00 AM | |
| 1:00 AM | 7:00 AM | |
| 2:00 AM | 8:00 AM | |
| 3:00 AM | 9:00 AM | |
| 4:00 AM | 10:00 AM | |
| 5:00 AM | 11:00 AM | |
| 6:00 AM | 12:00 PM | |
| 7:00 AM | 1:00 PM | |
| 8:00 AM | 2:00 PM | |
| 9:00 AM | 3:00 PM | Overlap |
| 10:00 AM | 4:00 PM | Overlap |
| 11:00 AM | 5:00 PM | Overlap |
| 12:00 PM | 6:00 PM | |
| 1:00 PM | 7:00 PM | |
| 2:00 PM | 8:00 PM | |
| 3:00 PM | 9:00 PM | |
| 4:00 PM | 10:00 PM | |
| 5:00 PM | 11:00 PM | |
| 6:00 PM | 12:00 AM | |
| 7:00 PM | 1:00 AM | |
| 8:00 PM | 2:00 AM | |
| 9:00 PM | 3:00 AM | |
| 10:00 PM | 4:00 AM | |
| 11:00 PM | 5:00 AM |
Highlighted rows fall within standard 9 AM–6 PM business hours in both cities — the easiest windows to schedule a call. Note: Chicago and London observe Daylight Saving Time, so the exact difference shifts by an hour around DST changeovers. The live converter always reflects the current offset.
When it's 9:00 AM in Chicago (CDT), it's 3:00 PM in London (GMT+1).
When it's 9:00 AM in London (GMT+1), it's 3:00 AM in Chicago (CDT).
Chicago is 6 hours behind London — a difference of 6 hours.
Best meeting window: roughly 9:00 AM–12:00 PM CDT (3:00 PM–6:00 PM GMT+1), when both cities are within normal business hours.
Note: Chicago and London observe Daylight Saving Time, so the exact difference shifts by an hour around DST changeovers. The live converter always reflects the current offset.