Chicago and London time difference
London is 6 hours ahead of Chicago for most of the year.
Plan a meeting in Chicago and LondonOpens the free planner with both cities: drag the bands to any day and time, add more cities, and share the result.
Work hours overlap for 2 hours: 09:00–11:00 in Chicago, which is 15:00–17:00 in London.
Hour by hour
On a usual work day (October 14, 2026). Green is 09:00–17:00 work time, dark is night (21:00–07:00).
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|---|---|
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| , Off hours | next day, Night |
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| , Night | next day, Night |
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Through the year
| Dates | Difference |
|---|---|
| October 8, 2026–October 24, 2026 | London is 6 hours ahead of Chicago |
| October 25, 2026–October 31, 2026 | London is 5 hours ahead of Chicago |
| November 1, 2026–March 13, 2027 | London is 6 hours ahead of Chicago |
| March 14, 2027–March 27, 2027 | London is 5 hours ahead of Chicago |
| March 28, 2027–October 7, 2027 | London is 6 hours ahead of Chicago |
Clock changes
Chicago: November 1, 2026: clocks go back 1 hour; March 14, 2027: clocks go forward 1 hour.
London: October 25, 2026: clocks go back 1 hour; March 28, 2027: clocks go forward 1 hour.
Questions
What time is it in London when it is 09:00 in Chicago?
On a usual day it is 15:00 in London.
Do Chicago and London change their clocks on the same day?
No. They change on different dates, so the difference changes during the year; see the table above.
More comparisons
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London
- London and New York
- London and Los Angeles
- London and Toronto
- London and Vancouver
- London and Mexico City
- London and São Paulo
- Buenos Aires and London
- London and Paris
- Berlin and London
- London and Madrid
- London and Warsaw
- Istanbul and London
- London and Moscow
- Cairo and London
- Lagos and London
- Johannesburg and London
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- Dubai and London
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- London and Mumbai
- Bangkok and London
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- Hong Kong and London
- London and Shanghai
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- Auckland and London