Time Difference Between Pacific Time and London
As of 31 August 2026, London is 8 hours ahead of Pacific Time. That number is not constant. Over the course of a year, because of daylight saving changes, London, United Kingdom ranges from 7 hours ahead to 8 hours ahead relative to Pacific Time, United States. The calculator below is always up to date.
Tap either box to search any country or city.
Pacific Time, United States
15:34
Mon, Aug 31, 2026
UTC-7 · PDT · America/Los_Angeles
London, United Kingdom
+8h23:34
Mon, Aug 31, 2026
UTC+1 · Europe/London
London is 8 hours ahead of Pacific Time.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| Pacific Time | Monday, August 31, 2026 | PDTAmerica/Los_Angeles | UTC-7 | Active now |
| London | Monday, August 31, 2026 | Europe/London | UTC+1 | 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: Pacific Time to London
Every hour of today in Pacific Time and what it is in London. Highlighted rows fall inside London working hours (09:00–18:00).
| Pacific Time | London |
|---|---|
| 00:00 | 08:00 |
| 01:00 | 09:00 |
| 02:00 | 10:00 |
| 03:00 | 11:00 |
| 04:00 | 12:00 |
| 05:00 | 13:00 |
| 06:00 | 14:00 |
| 07:00 | 15:00 |
| 08:00 | 16:00 |
| 09:00 | 17:00 |
| 10:00 | 18:00 |
| 11:00 | 19:00 |
| Pacific Time | London |
|---|---|
| 12:00 | 20:00 |
| 13:00 | 21:00 |
| 14:00 | 22:00 |
| 15:00 | 23:00 |
| 16:00 | 00:00next day |
| 17:00 | 01:00next day |
| 18:00 | 02:00next day |
| 19:00 | 03:00next day |
| 20:00 | 04:00next day |
| 21:00 | 05:00next day |
| 22:00 | 06:00next day |
| 23:00 | 07:00next day |
Best time to call or meet
Overlapping working hours
09:00–10:00 in Pacific Time (17:00–18:00 in London)
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
08:00–13:00 in Pacific Time (16:00–21:00 in London)
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, London is 7 hours ahead of Pacific Time — instead of 8 hours ahead, 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 Pacific Time and London 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.
Pacific Time and London: common questions
What is the time difference between Pacific Time and London?
As of 31 August 2026, London is 8 hours ahead of Pacific Time. The gap is not fixed: across the year, London ranges from 7 hours ahead to 8 hours ahead relative to Pacific Time, as clocks change. The calculator on this page always shows the difference for right now.
When it is 9:00 AM in Pacific Time, what time is it in London?
It is 05:00 PM in London, United Kingdom. Use the time field in the calculator above to check any other hour.
Is London ahead of or behind Pacific Time?
London is ahead of Pacific Time by 8 hours at the moment. In practical terms, the working day in London starts and ends earlier in Pacific Time terms.
Do Pacific Time and London observe daylight saving time?
Both Pacific Time and London change their clocks, but not on the same dates. That is why the gap is not fixed: across the year, London ranges from 7 hours ahead to 8 hours ahead relative to Pacific Time.
What is the best time to call London from Pacific Time?
Working hours overlap between 09:00 and 10:00 Pacific Time time, which is 17:00 to 18:00 in London. Calls inside that window reach both sides during the normal working day.
Related comparisons
Local dates shown for Pacific Time, United States (UTC-7) and London, United Kingdom (UTC+1) were generated on Monday, August 31, 2026 UTC and refresh in your browser.