London: Greenwich Mean Time
London, United Kingdom uses the Europe/London time zone (GMT).
Sunday, March 28, 2027: clocks go forward 1 hour at 1:00 AM local time (UTC+0 → UTC+1).
London to Chicago time
6 hours behind London
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London to Chicago conversion table
For Tuesday, November 3, 2026. Rows where both places are inside 9 AM–5 PM are highlighted.
| London | Chicago |
|---|---|
| 12:00 AM | 6:00 PM (previous day) |
| 1:00 AM | 7:00 PM (previous day) |
| 2:00 AM | 8:00 PM (previous day) |
| 3:00 AM | 9:00 PM (previous day) |
| 4:00 AM | 10:00 PM (previous day) |
| 5:00 AM | 11:00 PM (previous day) |
| 6:00 AM | 12:00 AM |
| 7:00 AM | 1:00 AM |
| 8:00 AM | 2:00 AM |
| 9:00 AM | 3:00 AM |
| 10:00 AM | 4:00 AM |
| 11:00 AM | 5:00 AM |
| 12:00 PM | 6:00 AM |
| 1:00 PM | 7:00 AM |
| 2:00 PM | 8:00 AM |
| 3:00 PM | 9:00 AM |
| 4:00 PM | 10:00 AM |
| 5:00 PM | 11:00 AM |
| 6:00 PM | 12:00 PM |
| 7:00 PM | 1:00 PM |
| 8:00 PM | 2:00 PM |
| 9:00 PM | 3:00 PM |
| 10:00 PM | 4:00 PM |
| 11:00 PM | 5:00 PM |
About these time zones
Chicago: Central Standard Time
Chicago, Illinois uses the America/Chicago time zone (CST).
Sunday, March 14, 2027: clocks go forward 1 hour at 2:00 AM local time (UTC−6 → UTC−5).
Questions about London and Chicago time
What is the time difference between London and Chicago?
The current difference is shown at the top of this page. London uses Greenwich Mean Time (GMT, UTC+0) as standard time and British Summer Time (BST, UTC+1) during daylight saving time; Chicago uses Central Standard Time (CST, UTC−6) as standard time and Central Daylight Time (CDT, UTC−5) during daylight saving time. The difference can change if only one side observes daylight saving time or if their clocks change on different dates. Choose your meeting date in the converter to check the applicable offset.
When it is 9:00 AM in London, what time is it in Chicago?
On Tuesday, November 3, 2026, 9:00 AM in London was 3:00 AM in Chicago. The conversion table above shows today’s values.
Do the clocks change in London or Chicago?
London: Sunday, March 28, 2027: clocks go forward 1 hour at 1:00 AM local time (UTC+0 → UTC+1). Chicago: Sunday, March 14, 2027: clocks go forward 1 hour at 2:00 AM local time (UTC−6 → UTC−5).
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