Meridian
PST to GMT converter
Convert PST to GMT and see the overlapping work hours for Los Angeles and London on one drag timeline. DST-aware, no signup.
How PST to GMT actually works
PST (Pacific Standard Time) is UTC−8; GMT is UTC+0, so the headline difference is 8 hours. The catch is daylight saving. Los Angeles switches to PDT (UTC−7) in mid-March and back in early November; London switches to BST (UTC+1) in late March and back in late October. Because the two changes are roughly two weeks apart, the gap is 8 hours for almost the whole year, then briefly 7 hours during each transition.
Memorising “PST is minus eight” breaks in exactly those weeks. The reliable method is to pick the IANA zones
America/Los_Angeles and Europe/London and read both local clocks for the same UTC minute —
which is what the planner above does.
Typical overlapping work hours
- With a strict 09:00–17:00 day on both sides: about 09:00–10:00 Los Angeles / 17:00–18:00 London.
- London to 18:00: adds a second shared hour.
- Los Angeles starting 08:00: pulls the window to a comfortable 08:00–09:00 PT slot.
If neither side can flex, keep live calls between Eastern US and London and move Pacific updates to async notes — see the US–UK timezone overlap guide.
Convert a specific time
- The planner already has Los Angeles and London loaded.
- Drag either city bar to your proposed hour — both rows stay locked to the same UTC moment.
- Set work hours to match your team, then read the green overlap band.
- Copy the invite so both local dates and times (including any “+1 day”) are explicit.
PST to GMT — frequently asked questions
What is the time difference between PST and GMT?
PST (UTC−8) is 8 hours behind GMT (UTC+0). It stays 8 hours for most of the year and drops to 7 hours during the March and late-October transition weeks, when only one of Los Angeles / London has changed clocks.
Is PST always 8 hours behind GMT?
No — only in deep winter. Because the UK and US shift on different dates, Los Angeles ↔ London is 7 hours apart twice a year. Comparing America/Los_Angeles and Europe/London on one UTC minute removes the guesswork.
What are the overlapping work hours for Los Angeles and London?
With 09:00–17:00 on both sides, roughly 09:00–10:00 Los Angeles / 17:00–18:00 London. Widening either work day opens more.
Does this converter handle daylight saving?
Yes. It uses IANA time zones via Luxon, so PDT and BST are applied automatically on the right dates.