London, United Kingdom
Sat, Jul 4, 2026 15:37
- Timezone
- Europe/London
- UTC offset
- UTC+01:00
- Daylight saving
- Yes
London and Chicago Time Difference
Compare London vs Chicago time, current local times, UTC offset difference, daylight saving status, and the best time to plan meetings or travel.
Quick Answer
What is the time difference between London and Chicago?
The live comparison below shows both local times, current UTC offsets, daylight saving status, and whether Chicago is ahead of or behind London.
Current time difference
Chicago, United States
Sat, Jul 4, 2026 09:37
- Timezone
- America/Chicago
- UTC offset
- UTC-05:00
- Daylight saving
- Yes
Time difference
Chicago is 6 hours behind London
UTC offset difference
-06:00
Suggested call window
Sat, Jul 4, 15:00-23:00 / Sat, Jul 4, 09:00-17:00
Calculated using initiator awake hours of 08:00-23:00 and recipient office hours of 09:00-18:00.
Dynamic Time Difference
London is 6 hours ahead of Chicago
The difference changes during 2026 because London changes UTC offset during the year and Chicago changes UTC offset during the year. Jan 1-Mar 7: London is 6 hours ahead of Chicago; Mar 8-Mar 28: London is 5 hours ahead of Chicago; Mar 29-Oct 24: London is 6 hours ahead of Chicago; Oct 25-Oct 31: London is 5 hours ahead of Chicago; Nov 1-Dec 31: London is 6 hours ahead of Chicago.
London
UTC+01:00 · Seasonal clock changes; DST is active now
Chicago
UTC-05:00 · Seasonal clock changes; DST is active now
Business Call Window
09:00-18:00 work-hour overlap
Both 09:00-18:00 workdays overlap. A practical window is 15:00-18:00 in London, which is 09:00-12:00 in Chicago.
London: 15:00-18:00
Chicago: 09:00-12:00
24-Hour Conversion Table
London to Chicago hourly time conversion
The table uses today's active UTC offsets. Seasonal rows can shift when daylight saving time changes.
| London | Chicago |
|---|---|
| 00:00 | 18:00 (previous day) |
| 01:00 | 19:00 (previous day) |
| 02:00 | 20:00 (previous day) |
| 03:00 | 21:00 (previous day) |
| 04:00 | 22:00 (previous day) |
| 05:00 | 23:00 (previous day) |
| 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 |
FAQ
What is the current time difference between London and Chicago?
London is 6 hours ahead of Chicago. This uses the active IANA timezone offsets for today.
When does the London-Chicago time difference change in 2026?
The difference changes during 2026 because London changes UTC offset during the year and Chicago changes UTC offset during the year. Jan 1-Mar 7: London is 6 hours ahead of Chicago; Mar 8-Mar 28: London is 5 hours ahead of Chicago; Mar 29-Oct 24: London is 6 hours ahead of Chicago; Oct 25-Oct 31: London is 5 hours ahead of Chicago; Nov 1-Dec 31: London is 6 hours ahead of Chicago.
What are the current UTC offsets for London and Chicago?
London is currently UTC+01:00; Chicago is currently UTC-05:00.
Which direction does the clock change when flying from London to Chicago?
Travelers from London to Chicago move their clock back by 6 hours.
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