Convert PST to BST
See the time difference between Pacific Standard Time and British Summer Time with a live converter, hourly table, and scheduling tools.
How PST to BST Works
Convert Pacific Standard Time (UTC-8) to British Summer Time (UTC+1) with the current offset difference applied automatically. The converter reflects seasonal clock changes so results stay accurate.
Hour-by-Hour Conversion Table
Use the visual grid and hour-by-hour table to compare PST and BST across the day. Check overlapping business hours and export selected times with ICS download or Google Calendar.
Schedule Meetings Across Zones
Find practical meeting times between Pacific Standard Time and British Summer Time, then share them through calendar links or Gmail. DST tracking and historical timezone rules are kept current with the IANA timezone database.
PST (Pacific Standard Time, UTC-8) to BST (British Summer Time, UTC+1) conversion is used when coordinating schedules between the west coast of North America and the United Kingdom. Pacific Standard Time is used in Canada, Mexico, and the United States, while British Summer Time is used in Guernsey, the Isle of Man, Jersey, and the United Kingdom.
Looking for Pitcairn Standard Time? See /time-converter/pst-pitcairn-time-zone.
Looking for Bangladesh Standard Time? See /time-converter/bst-bangladesh-time-zone.
Looking for Bougainville Standard Time? See /time-converter/bst-bougainville-time-zone.
How to Convert PST to BST
Open the PST to BST converter: Go to
https://www.xconvert.com/time-converter/pst-to-bst-converterto load a visual comparison grid with Pacific Standard Time and British Summer Time already in view. This is useful when you need to schedule a sales call between California and London, line up a media interview with a UK newsroom, or plan a handoff between a North American product team and a British operations team.Add relevant comparison cities: Click + Add City and search for cities that matter to your workflow, such as Los Angeles for west coast tech meetings, London for UK headquarters scheduling, and Vancouver if your team spans multiple Pacific offices. This helps agencies, SaaS companies, film production teams, and ecommerce operators compare one PST-based schedule against British Summer Time without switching between separate tools.
Select a meeting window on the grid: Click Select, then drag across the Pacific Standard Time row to highlight a range in purple, such as 9:00 PST to 12:00 PST, which corresponds to 18:00 BST to 21:00 BST. You can drag the center of the selection to test alternatives or pull the left and right handles to resize it, which is practical when deciding whether a late-morning west coast meeting still fits into an early-evening UK workday.
Export and share the chosen time: Once a range is selected, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. That makes it easy to send a confirmed PST-to-BST meeting slot to a distributed team, attach it to a client email, or create a calendar event that appears in each participant’s local time automatically.
Understanding the PST to BST Time Difference
Pacific Standard Time is 9 hours behind British Summer Time, and British Summer Time is 9 hours ahead of Pacific Standard Time. In practical terms, when it is 9:00 PST, it is 18:00 BST; when it is 12:00 PST, it is 21:00 BST; when it is 15:00 PST, it is 0:00 BST the next day; and when it is 18:00 PST, it is 3:00 BST the next day.
Pacific Standard Time is a standard-time abbreviation, and its daylight saving counterpart is PDT. British Summer Time is a daylight saving abbreviation, and its standard counterpart is GMT, so the PST-to-BST pairing applies specifically when North America is on Pacific Standard Time and the UK is on British Summer Time, rather than during every month of the year.
This matters for teams that work across seasonal clock changes, especially in software, finance, customer support, and logistics. If you regularly coordinate between cities in the Pacific time zone and the UK, you need to confirm whether you are comparing Pacific Standard Time to British Summer Time, or whether one side has shifted to PDT or GMT, because the naming changes indicate that the relationship is not the same year-round.
Best Times for Calls and Meetings Between PST and BST
Pacific Standard Time and British Summer Time can still support same-day meetings, but the overlap is weighted toward the morning in PST and the evening in BST. The clearest examples are 9:00 PST = 18:00 BST and 12:00 PST = 21:00 BST, which means a west coast morning maps to after-work or end-of-day hours in the UK.
For business calls, the most realistic window is usually before mid-afternoon in Pacific Standard Time. Once you move to 15:00 PST = 0:00 BST the next day, the UK side has already crossed into midnight, and by 18:00 PST = 3:00 BST the next day, the meeting time is only realistic for overnight operations, emergency support, or industries with 24/7 coverage.
This pattern is common for cross-Atlantic coordination in technology, gaming, digital agencies, streaming media, and multinational retail. A California-based engineering team can hold a standup or stakeholder review in the morning and still catch London colleagues before the UK day ends, but afternoon PST meetings usually push British Summer Time participants into the next calendar day.
Frequently Asked Questions
What is the time difference between PST and BST?
Pacific Standard Time is 9 hours behind British Summer Time, and British Summer Time is 9 hours ahead of Pacific Standard Time. That means west coast North American schedules convert into much later UK times, so even a standard morning meeting in PST often lands in the evening in BST.
When is 9 AM PST in BST?
9:00 PST = 18:00 BST. This is one of the most common conversion points for remote work because it turns a west coast morning start into an early evening slot in the UK, which can still work for client calls, project reviews, and end-of-day check-ins.
Does the difference between PST and BST change during DST?
Yes, because Pacific Standard Time and British Summer Time are not both year-round standard-time labels. Pacific Standard Time is paired with PDT during daylight saving periods, and British Summer Time is paired with GMT outside summer time, so the exact relationship changes depending on which seasonal abbreviation is active.
What is the best meeting time between PST and BST?
The most practical meeting window is usually in the PST morning, because that converts to the BST evening rather than the middle of the night. For example, 9:00 PST = 18:00 BST is often manageable for teams on both sides, while 12:00 PST = 21:00 BST is still possible for urgent meetings but already late for routine collaboration.
When is 12 PM PST in BST?
12:00 PST = 21:00 BST. This can work for final approvals, media coordination, or client escalations, but it is already late in the UK, so it is less suitable for recurring daily meetings than an earlier Pacific Standard Time slot.
When does a PST afternoon become the next day in BST?
A Pacific Standard Time afternoon can cross into the next calendar day in British Summer Time very quickly. For example, 15:00 PST = 0:00 BST the next day, and 18:00 PST = 3:00 BST the next day, which is why late west coast meetings usually create scheduling problems for UK participants.
Is PST Pacific Standard Time or Pitcairn Standard Time?
On this page, PST means Pacific Standard Time (UTC-8). PST can also mean Pitcairn Standard Time (UTC-8), and if you need that meaning, use /time-converter/pst-pitcairn-time-zone.
Is BST British Summer Time or Bangladesh Standard Time?
On this page, BST means British Summer Time (UTC+1). BST can also mean Bangladesh Standard Time (UTC+6) or Bougainville Standard Time (UTC+11), and those are covered at /time-converter/bst-bangladesh-time-zone and /time-converter/bst-bougainville-time-zone.