How to read it
London and Los Angeles, side by side
Each row is one city's day, half an hour to a square, lined up by the hours along the bottom.
- 1Filled: at the desk, 9:00 to 18:00 where that city is.
- 2Grey: up early, up late, or the weekend.
- 3Outline: asleep.
- 4Red band: your slot. Read straight down to see the same moment in every city.
- 5A marks the best time for everyone; B, when there is one, the next best.
The red band is the best time to call on Wed, 21 Oct 2026: 17:00–18:00 in London, which is 09:00–10:00 in Los Angeles.
Through the year
How the gap between London and Los Angeles moves
Los Angeles is 8h behind London today. Daylight saving moves it:
- Los Angeles 8h behind London
- Los Angeles 7h behind London
- Sun, 25 Oct 2026 London's clocks go back an hour. Los Angeles is then 7h behind London.
- Sun, 1 Nov 2026 Los Angeles's clocks go back an hour. Los Angeles is then 8h behind London.
- Sun, 14 Mar 2027 Los Angeles's clocks go forward an hour. Los Angeles is then 7h behind London.
- Sun, 28 Mar 2027 London's clocks go forward an hour. Los Angeles is then 8h behind London.
Hour by hour
London to Los Angeles time, hour by hour
On a working day (Wed, 21 Oct 2026), with working hours of 9:00 to 18:00 in both cities.
- London starts work 09:00 01:00 in Los Angeles Asleep
- Los Angeles starts work 09:00 17:00 in London At desk
- London finishes work 18:00 10:00 in Los Angeles At desk
- Los Angeles finishes work 18:00 02:00 Wed in London Asleep
Show all 24 hours
| London | Los Angeles |
|---|---|
| 00:00 Asleep | 16:00 Tue At desk |
| 01:00 Asleep | 17:00 Tue At desk |
| 02:00 Asleep | 18:00 Tue Late |
| 03:00 Asleep | 19:00 Tue Late |
| 04:00 Asleep | 20:00 Tue Late |
| 05:00 Asleep | 21:00 Tue Late |
| 06:00 Asleep | 22:00 Tue Asleep |
| 07:00 Early | 23:00 Tue Asleep |
| 08:00 Early | 00:00 Asleep |
| 09:00 At desk | 01:00 Asleep |
| 10:00 At desk | 02:00 Asleep |
| 11:00 At desk | 03:00 Asleep |
| 12:00 At desk | 04:00 Asleep |
| 13:00 At desk | 05:00 Asleep |
| 14:00 At desk | 06:00 Asleep |
| 15:00 At desk | 07:00 Early |
| 16:00 At desk | 08:00 Early |
| 17:00 At desk | 09:00 At desk |
| 18:00 Late | 10:00 At desk |
| 19:00 Late | 11:00 At desk |
| 20:00 Late | 12:00 At desk |
| 21:00 Late | 13:00 At desk |
| 22:00 Asleep | 14:00 At desk |
| 23:00 Asleep | 15:00 At desk |
Questions
Questions people ask
What is the time difference between London and Los Angeles?
Los Angeles is 8h behind London (as of Wed, 21 Oct 2026). That changes on Sun, 25 Oct 2026, when London's clocks go back: then Los Angeles is 7h behind London.
What is the best time for a call between London and Los Angeles?
On a working day, the best time for a call is 17:00–18:00 in London (09:00–10:00 in Los Angeles) until 24 Oct 2026 and from 1 Nov 2026 to 13 Mar 2027 and from 28 Mar 2027, and 16:00–17:00 in London (09:00–10:00 in Los Angeles) from 25 Oct 2026 to 31 Oct 2026 and from 14 Mar 2027 to 27 Mar 2027.
Does London change its clocks?
Yes. London moves its clocks back an hour on Sun, 25 Oct 2026, and forward an hour on Sun, 28 Mar 2027.
Does Los Angeles change its clocks?
Yes. Los Angeles moves its clocks back an hour on Sun, 1 Nov 2026, and forward an hour on Sun, 14 Mar 2027.
More city pairs
Compare more cities
London and…
- London and Mumbai
- London and Delhi
- London and Bengaluru
- London and Dubai
- London and Abu Dhabi
- London and Riyadh
- London and Doha
- London and Singapore
- London and Hong Kong
- London and Tokyo
- London and Sydney
- London and Paris
- London and Berlin
- London and Amsterdam
- London and New York
- London and Toronto
- London and Chicago
- London and San Francisco
Los Angeles and…
- Los Angeles and Mumbai
- Los Angeles and Delhi
- Los Angeles and Bengaluru
- Los Angeles and Dubai
- Los Angeles and Abu Dhabi
- Los Angeles and Riyadh
- Los Angeles and Doha
- Los Angeles and Singapore
- Los Angeles and Hong Kong
- Los Angeles and Tokyo
- Los Angeles and Sydney
- Los Angeles and Paris
- Los Angeles and Berlin
- Los Angeles and Amsterdam
- Los Angeles and New York
- Los Angeles and Toronto
- Los Angeles and Chicago
- Los Angeles and San Francisco
From the team behind 10:10
Running an event across time zones?
C4E has spent twenty years running conferences, dealer meets and offsites in more than 40 countries, with clients, speakers and crews in different time zones. 10:10 is one of the tools we built for our own shows. It is free, with no account and nothing upsold.