London to Boulder City time converter

Boulder City is 8 hours behind London. When it is 9:00 AM in London, it is 1:00 AM in Boulder City.

London BST

Tuesday, October 20, 2026

Boulder City PDT

Tuesday, October 20, 2026

United Kingdom
Tue, Oct 20
BSTUTC+1
Nevada, United States
Tue, Oct 20
PDTUTC-7-8h
Finding your time zone…

9:37 AM in London, Tuesday, October 20, 2026

Shared working hours (9:00–18:00)

London to Boulder City conversion table

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

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

Best time to call or meet

Both sides are at work from 5:00 PM – 6:00 PM in London (9:00 AM – 10:00 AM in Boulder City).

Daylight saving time and the difference

The difference changes during the year because London and Boulder City switch clocks on different dates:

  • Oct 20, 2026 – Oct 25, 2026: -8h
  • Oct 25, 2026 – Nov 1, 2026: -7h
  • Nov 1, 2026 – Mar 14, 2027: -8h
  • Mar 14, 2027 – Mar 28, 2027: -7h
  • Mar 28, 2027 – Oct 20, 2027: -8h

Distance

London and Boulder City are 8,402 km (5,221 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between London and Boulder City?

Boulder City is 8 hours behind London.

What time is it in Boulder City when it is 9 AM in London?

When it is 9:00 AM in London, it is 1:00 AM in Boulder City.

When is the best time to call Boulder City from London?

Both sides are at work from 5:00 PM – 6:00 PM in London (9:00 AM – 10:00 AM in Boulder City).

Does the time difference between London and Boulder City change?

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