Time difference
Time difference between Chicago and London
London is 6 hours ahead of Chicago.
Chicago, USA
07:00:00
Wednesday, 22 Apr 2026
CDT · UTC-05:00
London, UK
13:00:00
Wednesday, 22 Apr 2026
GMT+1 · UTC+01:00
Convert specific times
Need an exact time, not just the offset?
Related time differences
Frequently asked questions
- How many hours is London ahead of Chicago?
- London is 6 hours ahead of Chicago.
- Does the time difference between Chicago and London change?
- No — neither city observes daylight saving in a way that changes this pair's gap, so the difference is stable year-round.
- What time zone does Chicago use?
- Chicago uses America/Chicago (CDT, UTC-05:00).
- What time zone does London use?
- London uses Europe/London (GMT+1, UTC+01:00).