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
9:37 AM in London, Tuesday, October 20, 2026
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).
| London | Boulder City |
|---|---|
| 12:00 AM | 4:00 PM−1 day |
| 1:00 AM | 5:00 PM−1 day |
| 2:00 AM | 6:00 PM−1 day |
| 3:00 AM | 7:00 PM−1 day |
| 4:00 AM | 8:00 PM−1 day |
| 5:00 AM | 9:00 PM−1 day |
| 6:00 AM | 10:00 PM−1 day |
| 7:00 AM | 11:00 PM−1 day |
| 8:00 AM | 12:00 AM |
| 9:00 AM | 1:00 AM |
| 10:00 AM | 2:00 AM |
| 11:00 AM | 3:00 AM |
| 12:00 PM | 4:00 AM |
| 1:00 PM | 5:00 AM |
| 2:00 PM | 6:00 AM |
| 3:00 PM | 7:00 AM |
| 4:00 PM | 8:00 AM |
| 5:00 PM | 9:00 AM |
| 6:00 PM | 10:00 AM |
| 7:00 PM | 11:00 AM |
| 8:00 PM | 12:00 PM |
| 9:00 PM | 1:00 PM |
| 10:00 PM | 2:00 PM |
| 11:00 PM | 3:00 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.