Time Difference Between United Kingdom and Pacific Time
As of 31 August 2026, Pacific Time is 8 hours behind United Kingdom. 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 United Kingdom.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| United Kingdom | 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: United Kingdom to Pacific Time
Every hour of today in United Kingdom and what it is in Pacific Time. Highlighted rows fall inside Pacific Time working hours (09:00–18:00).
| United Kingdom | 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 |
| United Kingdom | 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 United Kingdom (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 United Kingdom (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
United Kingdom 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 United Kingdom — 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 United Kingdom 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.
United Kingdom and Pacific Time: common questions
What is the time difference between United Kingdom and Pacific Time?
As of 31 August 2026, Pacific Time is 8 hours behind United Kingdom. The gap is not fixed: across the year, Pacific Time ranges from 8 hours behind to 7 hours behind relative to United Kingdom, as clocks change. The calculator on this page always shows the difference for right now.
When it is 9:00 AM in United Kingdom, 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 United Kingdom?
Pacific Time is behind United Kingdom by 8 hours at the moment. In practical terms, the working day in Pacific Time starts and ends later in United Kingdom terms.
Do United Kingdom and Pacific Time observe daylight saving time?
Both United Kingdom 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 United Kingdom.
What is the best time to call Pacific Time from United Kingdom?
Working hours overlap between 17:00 and 18:00 United Kingdom 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.