Converting GMT to PST
Greenwich Mean Time is the time at the Prime Meridian and the reference point for the world's clocks. To convert GMT to PST, subtract 8 hours during Pacific Standard Time, or subtract 7 hours during daylight saving (when Pacific Time becomes PDT). The live clocks and conversion table above and below do this for you automatically, using the correct rule for today's date.
What Is the Difference Between GMT and PST?
GMT — Greenwich Mean Time (UTC+0, all year) never changes and does not observe daylight saving.
PST — Pacific Standard Time is GMT-8. During daylight saving the US West Coast switches to Pacific Daylight Time (PDT), which is GMT-7. So for most of the winter GMT is 8 hours ahead of Pacific Time, and for most of the summer it is 7 hours ahead. The clocks on this page always show the current, correct difference.
GMT to PST Conversion Table
Every hour of the day in Greenwich Mean Time with its equivalent in US Pacific Time — computed live from the official timezone rules, so daylight saving is always already applied. The highlighted row is the current hour.
| GMT | PST |
|---|
GMT and Pacific Time
GMT — Greenwich Mean Time (UTC) (UTC+0, all year) is the global time reference used in aviation, shipping, and international coordination.
PST — Pacific Time (GMT-8 standard, GMT-7 in summer) covers Los Angeles, San Francisco, Seattle, and Vancouver.
For calls and meetings across GMT and Pacific Time, aim for the overlap of normal working hours in both zones — the conversion table above makes the window easy to spot. Because Pacific Time is well behind GMT, late afternoon in the UK usually meets morning on the US West Coast.
FAQ
What's the time difference between GMT and PST right now?
It's shown live under the clocks above, including any daylight saving currently in effect.
Is the table daylight-saving aware?
Yes — everything on this page is computed from the IANA timezone database in your browser, which applies the correct rules for today's date automatically.
Can I convert a specific date and time?
For a specific future date — including one that crosses a daylight saving change — use the full time zone converter.