London to Chicago Heights time converter

Chicago Heights is 6 hours behind London. When it is 9:00 AM in London, it is 3:00 AM in Chicago Heights.

London BST

Tuesday, October 20, 2026

Chicago Heights CDT

Tuesday, October 20, 2026

United Kingdom
Tue, Oct 20
BSTUTC+1
Illinois, United States
Tue, Oct 20
CDTUTC-5-6h
Finding your time zone…

5:20 PM in London, Tuesday, October 20, 2026

Shared working hours (9:00–18:00)

London to Chicago Heights conversion table

Every hour of today in London and the matching time in Chicago Heights. Light rows are typical working hours (9:00–18:00).

LondonChicago Heights
12:00 AM6:00 PM−1 day
1:00 AM7:00 PM−1 day
2:00 AM8:00 PM−1 day
3:00 AM9:00 PM−1 day
4:00 AM10:00 PM−1 day
5:00 AM11:00 PM−1 day
6:00 AM12:00 AM
7:00 AM1:00 AM
8:00 AM2:00 AM
9:00 AM3:00 AM
10:00 AM4:00 AM
11:00 AM5:00 AM
12:00 PM6:00 AM
1:00 PM7:00 AM
2:00 PM8:00 AM
3:00 PM9:00 AM
4:00 PM10:00 AM
5:00 PM11:00 AM
6:00 PM12:00 PM
7:00 PM1:00 PM
8:00 PM2:00 PM
9:00 PM3:00 PM
10:00 PM4:00 PM
11:00 PM5:00 PM

Best time to call or meet

Both sides are at work from 3:00 PM – 6:00 PM in London (9:00 AM – 12:00 PM in Chicago Heights).

Daylight saving time and the difference

The difference changes during the year because London and Chicago Heights switch clocks on different dates:

  • Oct 20, 2026 – Oct 25, 2026: -6h
  • Oct 25, 2026 – Nov 1, 2026: -5h
  • Nov 1, 2026 – Mar 14, 2027: -6h
  • Mar 14, 2027 – Mar 28, 2027: -5h
  • Mar 28, 2027 – Oct 20, 2027: -6h

Distance

London and Chicago Heights are 6,381 km (3,965 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between London and Chicago Heights?

Chicago Heights is 6 hours behind London.

What time is it in Chicago Heights when it is 9 AM in London?

When it is 9:00 AM in London, it is 3:00 AM in Chicago Heights.

When is the best time to call Chicago Heights from London?

Both sides are at work from 3:00 PM – 6:00 PM in London (9:00 AM – 12:00 PM in Chicago Heights).

Does the time difference between London and Chicago Heights change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.