London to Mount Prospect time converter

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

London BST

Monday, October 19, 2026

Mount Prospect CDT

Sunday, October 18, 2026

London
United Kingdom
Mon, Oct 19
BSTUTC+1
Mount Prospect
Illinois, United States
Sun, Oct 18
CDTUTC-5-6h
Finding your time zone…
Shared working hours (9:00–18:00)

London to Mount Prospect conversion table

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

LondonMount Prospect
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 Mount Prospect).

Daylight saving time and the difference

The difference changes during the year because London and Mount Prospect switch clocks on different dates:

  • Oct 19, 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 19, 2027: -6h

Distance

London and Mount Prospect are 6,358 km (3,951 miles) apart in a straight line.

More conversions

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Questions and answers

What is the time difference between London and Mount Prospect?

Mount Prospect is 6 hours behind London.

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

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

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

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

Does the time difference between London and Mount Prospect change?

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