The Short Answer
London is 8 hours ahead of Los Angeles for all but three or four weeks of the year. When it is 9 AM in Los Angeles, it is 5 PM in London the same day.
For those three or four weeks the gap is 7 hours instead. That happens because the UK and the US move their clocks on different dates: the US springs forward two or three weeks before the UK does, and the UK falls back one week before the US does.
Today, October 12, 2026, London is 8 hours ahead of Los Angeles.
Every Period Through 2028
These periods are calculated from the America/Los_Angeles and Europe/London time zone rules. Each one runs from the first full day after a clock change to the day before the next.
- October 12 – October 24, 2026: London is 8 hours ahead
- October 25 – October 31, 2026: London is 7 hours ahead (changeover gap)
- November 1, 2026 – March 13, 2027: London is 8 hours ahead
- March 14 – March 27, 2027: London is 7 hours ahead (changeover gap)
- March 28 – October 30, 2027: London is 8 hours ahead
- October 31 – November 6, 2027: London is 7 hours ahead (changeover gap)
- November 7, 2027 – March 11, 2028: London is 8 hours ahead
- March 12 – March 25, 2028: London is 7 hours ahead (changeover gap)
- March 26 – October 28, 2028: London is 8 hours ahead
- October 29 – November 4, 2028: London is 7 hours ahead (changeover gap)
The clock changes behind those periods:
- October 25, 2026: London moves clocks back one hour
- November 1, 2026: Los Angeles moves clocks back one hour
- March 14, 2027: Los Angeles moves clocks forward one hour
- March 28, 2027: London moves clocks forward one hour
- October 31, 2027: London moves clocks back one hour
- November 7, 2027: Los Angeles moves clocks back one hour
- March 12, 2028: Los Angeles moves clocks forward one hour
- March 26, 2028: London moves clocks forward one hour
Los Angeles to London Conversion Table
For the usual 8-hour gap:
- 6 AM Los Angeles = 2 PM London
- 7 AM Los Angeles = 3 PM London
- 8 AM Los Angeles = 4 PM London
- 9 AM Los Angeles = 5 PM London
- 10 AM Los Angeles = 6 PM London
- noon Los Angeles = 8 PM London
- 2 PM Los Angeles = 10 PM London
- 5 PM Los Angeles = 1 AM London the next day
- 8 PM Los Angeles = 4 AM London the next day
During a 7-hour gap, subtract one hour from every London time in that list: 9 AM Los Angeles becomes 4 PM London.
Best Times to Call
For work: the standard office days barely touch. A 9-to-5 day in Los Angeles and a 9-to-5 day in London do not overlap at all. The practical compromise is 8 to 9 AM Pacific, which is 4 to 5 PM in London. Keep the call short: London is at the end of its day.
For family and friends: both sides are awake during 8 AM – 2 PM Pacific = 4 PM – 10 PM in London. A weekend morning in Los Angeles is an easy fit, because it is late afternoon or early evening in London.
From London: an evening call at 6 to 9 PM reaches Los Angeles at 10 AM to 1 PM. Calling Los Angeles before 4 PM London time means waking someone before 8 AM.
Recurring Meetings: Pick an Anchor City
A weekly meeting set for “9 AM Los Angeles” and one set for “5 PM London” are the same meeting for most of the year and different meetings during the gap weeks. Decide which city the meeting belongs to:
- Anchored to Los Angeles: it stays at 9 AM Pacific, and London attendees join at 4 PM during the gap weeks.
- Anchored to London: it stays at 5 PM London, and Los Angeles attendees join at 10 AM during the gap weeks.
Create the calendar invitation in the anchor city’s time zone, and write both cities in the title, for example “9 AM Los Angeles / 5 PM London”, so a wrong conversion is easy to spot.
Check a Specific Date
Open the time zone planner with Los Angeles and London selected. It shows today’s real gap, and “Plan a call” converts any future date using the rules for that date, so the gap weeks come out right. The link it produces shows the call in the other person’s local time.
Calculated on October 12, 2026. Clock-change rules are set by governments and can be changed by law, so recheck dates more than a year ahead.