London to Prospect Heights time converter

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

London BST

Tuesday, October 20, 2026

Prospect Heights CDT

Tuesday, October 20, 2026

London
United Kingdom
Tue, Oct 20
BSTUTC+1
Prospect Heights
Illinois, United States
Tue, Oct 20
CDTUTC-5-6h
Finding your time zone…
Shared working hours (9:00–18:00)

London to Prospect Heights conversion table

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

LondonProspect 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 Prospect Heights).

Daylight saving time and the difference

The difference changes during the year because London and Prospect 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 Prospect Heights are 6,356 km (3,949 miles) apart in a straight line.

More conversions

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Questions and answers

What is the time difference between London and Prospect Heights?

Prospect Heights is 6 hours behind London.

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

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

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

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

Does the time difference between London and Prospect Heights change?

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