Time Difference Between London and Pacific Time
As of 31 August 2026, Pacific Time is 8 hours behind London. That number is not constant. Over the course of a year, because of daylight saving changes, Pacific Time, United States ranges from 8 hours behind to 7 hours behind relative to London, United Kingdom. The calculator below is always up to date.
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London, United Kingdom
23:34
Mon, Aug 31, 2026
UTC+1 · Europe/London
Pacific Time, United States
-8h15:34
Mon, Aug 31, 2026
UTC-7 · PDT · America/Los_Angeles
Pacific Time is 8 hours behind London.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| London | Monday, August 31, 2026 | Europe/London | UTC+1 | Active now |
| Pacific Time | Monday, August 31, 2026 | PDTAmerica/Los_Angeles | UTC-7 | Active now |
Pacific Time: Covers the US West Coast, from Los Angeles to Seattle to San Francisco. Switches between PST (UTC-8) and PDT (UTC-7) with daylight saving.
Hour by hour: London to Pacific Time
Every hour of today in London and what it is in Pacific Time. Highlighted rows fall inside Pacific Time working hours (09:00–18:00).
| London | Pacific Time |
|---|---|
| 00:00 | 16:00prev day |
| 01:00 | 17:00prev day |
| 02:00 | 18:00prev day |
| 03:00 | 19:00prev day |
| 04:00 | 20:00prev day |
| 05:00 | 21:00prev day |
| 06:00 | 22:00prev day |
| 07:00 | 23:00prev day |
| 08:00 | 00:00 |
| 09:00 | 01:00 |
| 10:00 | 02:00 |
| 11:00 | 03:00 |
| London | Pacific Time |
|---|---|
| 12:00 | 04:00 |
| 13:00 | 05:00 |
| 14:00 | 06:00 |
| 15:00 | 07:00 |
| 16:00 | 08:00 |
| 17:00 | 09:00 |
| 18:00 | 10:00 |
| 19:00 | 11:00 |
| 20:00 | 12:00 |
| 21:00 | 13:00 |
| 22:00 | 14:00 |
| 23:00 | 15:00 |
Best time to call or meet
Overlapping working hours
17:00–18:00 in London (09:00–10:00 in Pacific Time)
Both places are inside 09:00–18:00 for 1 hour a day. Anything in this window works without asking anyone to stay late.
Reasonable calling hours
16:00–21:00 in London (08:00–13:00 in Pacific Time)
Both people are awake and available between 08:00 and 21:00 local time during this window.
When this difference changes
London puts its clocks back on Sunday, October 25, 2026
The local offset moves from UTC+1 to UTC. After that date, Pacific Time is 7 hours behind London — instead of 8 hours behind, as it is today.
Pacific Time puts its clocks back on Sunday, November 1, 2026
The local offset moves from UTC-7 to UTC-8. The gap between London and Pacific Time stays at 8 hours because both places change at the same time.
Planning something with more than two places?
Adding a third city usually kills the obvious answer. The Meeting Time Finder takes up to five cities at once and shows only the hours that work for everybody.
London and Pacific Time: common questions
What is the time difference between London and Pacific Time?
As of 31 August 2026, Pacific Time is 8 hours behind London. The gap is not fixed: across the year, Pacific Time ranges from 8 hours behind to 7 hours behind relative to London, as clocks change. The calculator on this page always shows the difference for right now.
When it is 9:00 AM in London, what time is it in Pacific Time?
It is 01:00 AM in Pacific Time, United States. Use the time field in the calculator above to check any other hour.
Is Pacific Time ahead of or behind London?
Pacific Time is behind London by 8 hours at the moment. In practical terms, the working day in Pacific Time starts and ends later in London terms.
Do London and Pacific Time observe daylight saving time?
Both London and Pacific Time change their clocks, but not on the same dates. That is why the gap is not fixed: across the year, Pacific Time ranges from 8 hours behind to 7 hours behind relative to London.
What is the best time to call Pacific Time from London?
Working hours overlap between 17:00 and 18:00 London time, which is 09:00 to 10:00 in Pacific Time. Calls inside that window reach both sides during the normal working day.
Related comparisons
Local dates shown for London, United Kingdom (UTC+1) and Pacific Time, United States (UTC-7) were generated on Monday, August 31, 2026 UTC and refresh in your browser.