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Time difference: Chicago and London
Chicago
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London
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London is 6 hours ahead of Chicago for most of 2026.
How the difference changes in 2026
The two cities change their clocks for daylight saving on different dates (or only one of them does), so the gap is not the same all year.
| Dates | Difference |
|---|---|
| 1 January – 7 March | London is 6 hours ahead of Chicago |
| 8 March – 28 March | London is 5 hours ahead of Chicago |
| 29 March – 24 October | London is 6 hours ahead of Chicago |
| 25 October – 31 October | London is 5 hours ahead of Chicago |
| 1 November – 31 December | London is 6 hours ahead of Chicago |
Hour by hour
Each row is the same moment in both cities, starting now.
| Chicago | London |
|---|
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