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PST to GMT converter

Convert Pacific Time to GMT. London is 8 hours ahead of Los Angeles for most of the year, and 7 hours ahead for a few weeks in spring and autumn.

From
Los Angeles
To
London
Live
Los AngelesPST
9:00 AM
 
Working hours
LondonGMT
5:00 PM
 
Working hours

London is 8 hours ahead of Los Angeles (PST vs GMT).

Need a time that works for three or more people or cities? Plan a meeting →
Gap
8 hours
London ahead of Los Angeles today
Working hours overlap
None
9-to-5 days in Los Angeles and London do not overlap; use an early or late slot
Next gap change
Mar 14, 2027
The gap becomes 7 hours (Los Angeles clocks go forward)
9:00 AM PST
5:00 PM GMT
London is 8 hours ahead of Los Angeles, as of Nov 6, 2026

From California to London

Starting from Los Angeles and working out London is a matter of adding eight hours, which turns a California morning into a British late afternoon. At 9:00 AM in Los Angeles it is 5:00 PM in London, and by the time the West Coast has had lunch, the UK is already at dinner.

The eight-hour figure is not constant. The US and UK change clocks at different times, so for part of March and a week at the end of October and into November, London is only seven hours ahead.

A call between the two cities almost always uses the California morning and the London evening.

Calls with UK partners

The Pacific morning is the only time when the London day is still running.

  • 7:00 AM PST is 3:00 PM in London
  • 9:00 AM PST is 5:00 PM in London
  • 10:00 AM PST is 6:00 PM in London, after UK office hours

Most UK colleagues will not take a call after 6 PM, so the practical window is 7 to 9 AM Pacific.

Live events and launches

UK audiences watch Californian events late at night.

  • A 10:00 AM PST keynote is 6:00 PM in London
  • A 1:00 PM PST event is 9:00 PM in London
  • A 6:00 PM PST premiere is 2:00 AM the next day in London

Recorded replays are common because of the gap.

Selling to the UK

Shops and subscription services in California need to know when UK customers are awake.

  • A 6:00 AM PST email arrives at 2:00 PM in London
  • A flash sale at noon PST starts at 8:00 PM in London
  • Customer-service chat from 8 AM to 4 PM PST covers 4 PM to midnight in London

Many US companies add a UK shift so that British customers can be served in their own morning.

Californian deadlines in London time

A deadline set for 11:59 PM PST is 7:59 AM GMT the next day, which means London staff will have been awake for some time. A 5:00 PM PST close is 1:00 AM GMT the next day.

To meet a UK deadline from California, subtract eight hours: 5:00 PM London is 9:00 AM Pacific. Remember to allow for the weeks when the gap is seven hours.

Eight hours, but not always

Los Angeles and London both observe daylight saving, but not on the same days. In spring the US changes first, in autumn the UK changes first. During the weeks in between, the gap between the two cities is 7 hours rather than 8.

Dates for 2026–27. Calculated from the IANA time zone database on Nov 6, 2026: today London is 8 hours ahead of Los Angeles. In northern winter the gap is 8 hours, in northern summer 8 hours. The clock changes ahead are:
  • Mar 14, 2027: Los Angeles moves to PDT (UTC−7); the gap becomes 7 hours
  • Mar 28, 2027: London moves to BST (UTC+1); the gap becomes 8 hours
  • Oct 31, 2027: London moves to GMT (UTC+0); the gap becomes 7 hours
  • Nov 7, 2027: Los Angeles moves to PST (UTC−8); the gap becomes 8 hours

If you work between these two cities, it helps to know the exact dates. Recurring meetings set in one city’s time will move by an hour in the other city for those weeks.

Los Angeles to London, every hour

Times are for Nov 6, 2026, when London is 8 hours ahead of Los Angeles. The gap changes on the dates listed above. Green rows are the hours when both places are inside a 9-to-5 day.

Los Angeles (PST)LondonGMT, +8 hrs
12:00 AM (midnight)8:00 AM
1:00 AM9:00 AM
2:00 AM10:00 AM
3:00 AM11:00 AM
4:00 AM12:00 PM
5:00 AM1:00 PM
6:00 AM2:00 PM
7:00 AM3:00 PM
8:00 AM4:00 PM
9:00 AM5:00 PM
10:00 AM6:00 PM
11:00 AM7:00 PM
12:00 PM (noon)8:00 PM
1:00 PM9:00 PM
2:00 PM10:00 PM
3:00 PM11:00 PM
4:00 PM12:00 AM next day
5:00 PM1:00 AM next day
6:00 PM2:00 AM next day
7:00 PM3:00 AM next day
8:00 PM4:00 AM next day
9:00 PM5:00 AM next day
10:00 PM6:00 AM next day
11:00 PM7:00 AM next day

“next day” and “previous day” mean London is on a different calendar date from Los Angeles.

Quick answers

What time is 9 AM PST in GMT?

5:00 PM GMT. London is 8 hours ahead of Los Angeles for most of the year.

Is London 8 hours ahead of LA?

Yes, except for a few weeks when the US and the UK are out of step, when it is 7 hours.

What is noon PST in London?

8:00 PM GMT.

What is the best time to call London from Los Angeles?

Between 7:00 and 9:00 AM Pacific, which is 3:00 to 5:00 PM in London.

What is 8 PM PST in London?

4:00 AM GMT the next day.