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Time gap

Time differences

Time difference between London and Los Angeles

No office hour works for both on a typical weekday — the bars below show the closest.

 

 

 

  • Everyone at work
  • Work hours
  • Awake
  • Night
  • Weekend

Tap any column to see that moment in every city.

Different hours for each city
  • 8 hoursLos Angeles behind London
  • UTC / UTC+1London, January / July
  • UTC−8 / UTC−7Los Angeles, January / July
  • 0 hoursshared 9-to-5 time

How the gap moves through the year

Los Angeles is 8 hours behind London for about 11 months of the year.

Los Angeles is 7 hours behind London for about 4 weeks of the year.

From the second Sunday in March (when Los Angeles moves forward), Los Angeles is 7 hours behind London.

From the last Sunday in March (when London moves forward), Los Angeles is 8 hours behind London.

From the last Sunday in October (when London falls back), Los Angeles is 7 hours behind London.

From the first Sunday in November (when Los Angeles falls back), Los Angeles is 8 hours behind London.

London moves its clocks forward one hour on the last Sunday in March at 1:00 am local time and back on the last Sunday in October at 2:00 am, switching between Greenwich Mean Time (UTC) and British Summer Time (UTC+1).

Los Angeles moves its clocks forward one hour on the second Sunday in March at 2:00 am local time and back on the first Sunday in November at 2:00 am, switching between Pacific Standard Time (UTC−8) and Pacific Daylight Time (UTC−7).

Next clock change for this pair, as of when this page was built (2026-10-20): London falls back on Sun 25 October 2026.

Everything on this page also holds if you swap London for Birmingham, Dublin, Glasgow, Manchester or Lisbon, or Los Angeles for Tijuana, San Diego, San Francisco, Seattle or Las Vegas — those cities follow exactly the same clock all year.

Working hours that overlap

In January, two 9-to-5 days never meet — not a single quarter-hour is inside working hours in both cities.

July is no different.

Stretching both days to 8:00–18:00 opens 2 hours (4:00 pm–6:00 pm in London). Beyond that, one side has to take an early-morning or evening call.

Across the week

At 9:00 on a Monday morning in London, it is 1:00 am on Monday in Los Angeles.

The other way round, 1 hour of a Los Angeles working week fall on the London weekend.

Daylight, distance and night calls

London and Los Angeles are about 8,760 km (5,440 miles) apart and 118° of longitude apart, which by the sun alone would be 7 hours 45 minutes.

London's winter clock sits within 2 minutes of the sun, and Los Angeles's sits within 7 minutes of the sun.

In mid-January the sun is up in London from about 7:59 am to 4:19 pm, and the sun is up in Los Angeles from about 6:58 am to 5:05 pm; both cities are in daylight at the same time for about 1 hour 15 minutes.

In mid-July the sun is up in London from about 5:00 am to 9:12 pm, and the sun is up in Los Angeles from about 5:52 am to 8:05 pm; both cities are in daylight at the same time for about 7 hours 15 minutes.

In January, 5 hours of a London office day fall in Los Angeles's night (10 pm to 6 am), and 3 hours of a Los Angeles office day fall in London's night.

In July, 5 hours of a London office day fall in Los Angeles's night (10 pm to 6 am), and 3 hours of a Los Angeles office day fall in London's night.

Two usual compromises in January: an early call at 7:00 am in London is 11:00 pm the previous day in Los Angeles; a late call at 6:00 pm in London is 10:00 am there.

Hour-by-hour table and common mistakes — 2 more sections
Each hour in London and the same moment in Los Angeles, on a Wednesday in January and in July. Shaded: inside 9-to-5 in both.
LondonLos Angeles, JanuaryLos Angeles, July
12:00 am4:00 pm (−1 day)4:00 pm (−1 day)
1:00 am5:00 pm (−1 day)5:00 pm (−1 day)
2:00 am6:00 pm (−1 day)6:00 pm (−1 day)
3:00 am7:00 pm (−1 day)7:00 pm (−1 day)
4:00 am8:00 pm (−1 day)8:00 pm (−1 day)
5:00 am9:00 pm (−1 day)9:00 pm (−1 day)
6:00 am10:00 pm (−1 day)10:00 pm (−1 day)
7:00 am11:00 pm (−1 day)11:00 pm (−1 day)
8:00 am12:00 am12:00 am
9:00 am1:00 am1:00 am
10:00 am2:00 am2:00 am
11:00 am3:00 am3:00 am
12:00 pm4:00 am4:00 am
1:00 pm5:00 am5:00 am
2:00 pm6:00 am6:00 am
3:00 pm7:00 am7:00 am
4:00 pm8:00 am8:00 am
5:00 pm9:00 am9:00 am
6:00 pm10:00 am10:00 am
7:00 pm11:00 am11:00 am
8:00 pm12:00 pm12:00 pm
9:00 pm1:00 pm1:00 pm
10:00 pm2:00 pm2:00 pm
11:00 pm3:00 pm3:00 pm

Common mistakes with London and Los Angeles

  • Assuming the gap is fixed. Both cities change their clocks, but not on the same weekend, so a recurring meeting can land an hour off for a few weeks.
  • Writing “GMT” all year for London. In summer the zone is British Summer Time; calendar apps handle it, but a typed time in an email can be read the wrong way.

Questions

Is Los Angeles ahead of London?
Los Angeles is 8 hours behind London for most of the year.
What is a good time for a meeting between London and Los Angeles?
There is no hour that is inside a 9-to-5 day in both cities. The least painful option is usually early morning in one and early evening in the other; drag the slider above to see the trade-off on your date.
Does the time difference between London and Los Angeles change?
Yes. Los Angeles is 8 hours behind London for about 11 months of the year. Los Angeles is 7 hours behind London for about 4 weeks of the year.

Related time differences

London time zone · Los Angeles time zone · Plan with more cities

City names, coordinates and time zone assignments: GeoNames, licensed under CC BY 4.0 (selection and renaming of some cities by this site). Clock times are computed in your browser from the IANA time zone database. Sources and limits.