Time difference between London and Chicago: 6 hours
London
United Kingdom · UTC+1
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Chicago
United States · UTC-5
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London is 6 hours ahead of Chicago
Best time for a call or meeting
London 15:00–18:00 = Chicago 09:00–12:00
Both cities are within business hours (9:00–18:00).
Convert a specific time
→ Chicago
Hour-by-hour conversion
| London | Chicago |
|---|---|
| 00:00 | 18:00 |
| 01:00 | 19:00 |
| 02:00 | 20:00 |
| 03:00 | 21:00 |
| 04:00 | 22:00 |
| 05:00 | 23:00 |
| 06:00 | 00:00 |
| 07:00 | 01:00 |
| 08:00 | 02:00 |
| 09:00 | 03:00 |
| 10:00 | 04:00 |
| 11:00 | 05:00 |
| 12:00 | 06:00 |
| 13:00 | 07:00 |
| 14:00 | 08:00 |
| 15:00 | 09:00 |
| 16:00 | 10:00 |
| 17:00 | 11:00 |
| 18:00 | 12:00 |
| 19:00 | 13:00 |
| 20:00 | 14:00 |
| 21:00 | 15:00 |
| 22:00 | 16:00 |
| 23:00 | 17:00 |
Business hours 9–18 Waking hours 7–22 Night / early morning
Daylight saving time can change the difference by season. Shown values reflect the current offset.
Frequently asked questions
How many hours is the time difference between London and Chicago?
London is 6 hours ahead of Chicago. When it is 12:00 noon in London, it is 06:00 in Chicago.
Does daylight saving time affect the difference?
Yes. One or both places observe daylight saving time, so the difference changes with the season. This page shows the current difference.
What is the best time for a call or meeting?
London 15:00–18:00 = Chicago 09:00–12:00. Both cities are within business hours (9:00–18:00).
Other city pairs
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