United Kingdom to PST
-9hUnited Kingdom
BSTSOURCEPST
PSTGreen rows indicate typical business hours (9 AM - 5 PM)
BST and PST on the World Map
The map below highlights the BST (Greenwich Mean Time) and PST (Pacific Standard Time) timezone regions across the globe.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
PST – Pacific Standard Time
UTC-08:00Pacific Standard Time (PST) is the time zone for the US and Canadian Pacific coast, 8 hours behind UTC.
- •Silicon Valley and the world's biggest tech companies operate on Pacific Time.
- •The Hollywood film industry runs on PST/PDT.
- •PST is 3 hours behind EST, creating a significant business hours gap.
- •Vancouver, Canada's third-largest city, uses PST.
United Kingdom to PST Time Difference – Complete Guide
United Kingdom runs on British Summer Time (BST) at UTC+01:00, currently observing daylight saving time. PST runs on Pacific Standard Time (PST) at UTC-08:00. That puts United Kingdom 9 hours behind PST — a difference of -9h at the current offsets.
In practice, when it is 9:00 AM in United Kingdom it is 12:00 AM in PST. Midnight in United Kingdom is 3:00 PM in PST.United Kingdom observes daylight saving time while PST does not, so the gap narrows or widens by an hour part of the year.
United Kingdom to PST time conversion table
| United Kingdom (BST) | PST (PST) | Day |
|---|---|---|
| 12:00 AM | 3:00 PM | previous day |
| 6:00 AM | 9:00 PM | previous day |
| 7:00 AM | 10:00 PM | previous day |
| 8:00 AM | 11:00 PM | previous day |
| 9:00 AM | 12:00 AM | same day |
| 12:00 PM | 3:00 AM | same day |
| 3:00 PM | 6:00 AM | same day |
| 5:00 PM | 8:00 AM | same day |
| 6:00 PM | 9:00 AM | same day |
| 9:00 PM | 12:00 PM | same day |
Why people convert United Kingdom to PST time
- Scheduling a call from United Kingdom to PST: a 10:00 AM start in United Kingdom lands at 1:00 AM in PST, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -9h gap: United Kingdom and PST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in PST is 12:00 AM in United Kingdom.
- Watching a live event or market open: United Kingdom viewers need 12:00 AM in PST to catch a 9:00 AM start there, and 9:00 AM if the event is anchored to United Kingdom.
- Always state the zone abbreviation, not just the hour. "3:00 PM BST" is unambiguous; "3 PM" across a -9h gap is not.
- With a -9h gap there is no shared 9-to-5 window, so alternate the early start: one week United Kingdom takes the early slot, the next week PST does.
- United Kingdom: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the -9h gap.
About GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
About PST (Pacific Standard Time)
Pacific Standard Time (PST) covers the west coast of North America, including tech hubs like San Francisco and Seattle, and entertainment capital Los Angeles. The Pacific Time Zone is home to Silicon Valley and the world's largest technology companies. During summer, clocks advance to Pacific Daylight Time (PDT, UTC-07:00). PST is also observed in Baja California, Mexico.
Best time to call between United Kingdom and PST
With a -9h offset there is no overlap inside a normal 9 AM – 5 PM day. PST opens at 9:00 AM PST, which is 12:00 AM in United Kingdom, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
United Kingdom and PST have no shared working hours because of the -9h gap. Teams need to alternate early starts or rely on asynchronous handovers.
United Kingdom is 9 hours behind PST (BST UTC+01:00 → PST UTC-08:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
United Kingdom
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
PST
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between United Kingdom and PST?
United Kingdom (BST, UTC+01:00) is 9 hours behind PST (PST, UTC-08:00). The gap is currently -9h.
How do I convert United Kingdom time to PST time?
Add -9h to United Kingdom local time. For example, 9:00 AM in United Kingdom is 12:00 AM in PST.
What time is it in PST right now?
PST uses PST at UTC-08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -9h offset from United Kingdom.
What is the best time to call PST from United Kingdom?
There is no shared working-hours window because of the -9h gap. The closest option is 1:00 PM in United Kingdom, which is 4:00 AM in PST.
Which is behind, United Kingdom or PST?
United Kingdom is 9 hours behind PST. When it is 12:00 PM in United Kingdom it is 3:00 AM in PST.
Do United Kingdom and PST use different time zones?
United Kingdom (United Kingdom) uses BST at UTC+01:00, while PST uses PST at UTC-08:00. The IANA identifiers are Europe/London and America/Los_Angeles.
Does daylight saving time affect the United Kingdom–PST difference?
Yes at the moment: United Kingdom is on daylight saving time and PST is not, so the -9h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share United Kingdom's time zone?
BST also covers London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar and 5 more.
Which countries use BST, United Kingdom's zone?
BST is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, Mali, Mauritania and 7 more.
Is there a day difference between United Kingdom and PST?
Not normally. The -9h gap only pushes the date over the previous day.
What is the time difference between United Kingdom and PST?
PST is -9h from United Kingdom.
What timezone is United Kingdom in?
United Kingdom operates on its local timezone.
What timezone is PST in?
PST operates on its local timezone.
Which countries use GMT (Greenwich Mean Time)?
GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, and 9 more countries.
Does GMT observe daylight saving time?
Yes, GMT switches to BST during summer months.
What are some interesting facts about GMT?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
Which cities are in the PST timezone?
Major cities in the PST timezone include Los Angeles, San Francisco, Seattle, Vancouver, San Diego, Portland, Las Vegas, Sacramento.
What is the UTC offset for PST?
Pacific Standard Time (PST) is at UTC-08:00. During daylight saving time, it shifts to PDT.
What should I know about the PST timezone?
Silicon Valley and the world's biggest tech companies operate on Pacific Time. The Hollywood film industry runs on PST/PDT.
When is it midnight in United Kingdom, what time is it in PST?
When it is 12:00 AM (midnight) in United Kingdom (GMT), it is -9h later in PST (PST).
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