GMT to PST time difference
Right now US Pacific Time is 8 hours behind UK: when it is 9:00 AM in UK (BST), it is 1:00 AM in US Pacific Time (PDT). The difference is not fixed. UK and US Pacific Time change the clocks twice a year, so from October 25, 2026 the gap becomes 7 hours, and from November 2, 2026 it goes back to 8 hours.
PT, PST and PDT
PT means Pacific Time, whatever the season. It is PST (Pacific Standard Time, UTC-8) from early November to mid-March and PDT (Pacific Daylight Time, UTC-7) the rest of the year. Today it is PDT. People often write "EST" all year when they mean Eastern Time; the times on this page are correct either way.
GMT to PST conversion table
Every hour of the day in UK and the matching time in US Pacific Time, for today, October 13, 2026.
| GMT (UK) | PST (US Pacific Time) |
|---|---|
| 12:00 AM | 4:00 PM (previous day) |
| 1:00 AM | 5:00 PM (previous day) |
| 2:00 AM | 6:00 PM (previous day) |
| 3:00 AM | 7:00 PM (previous day) |
| 4:00 AM | 8:00 PM (previous day) |
| 5:00 AM | 9:00 PM (previous day) |
| 6:00 AM | 10:00 PM (previous day) |
| 7:00 AM | 11:00 PM (previous day) |
| 8:00 AM | 12:00 AM |
| 9:00 AM | 1:00 AM |
| 10:00 AM | 2:00 AM |
| 11:00 AM | 3:00 AM |
| 12:00 PM | 4:00 AM |
| 1:00 PM | 5:00 AM |
| 2:00 PM | 6:00 AM |
| 3:00 PM | 7:00 AM |
| 4:00 PM | 8:00 AM |
| 5:00 PM | 9:00 AM |
| 6:00 PM | 10:00 AM |
| 7:00 PM | 11:00 AM |
| 8:00 PM | 12:00 PM |
| 9:00 PM | 1:00 PM |
| 10:00 PM | 2:00 PM |
| 11:00 PM | 3:00 PM |
Scheduling tips
With a gap of 8 hours, working hours barely overlap. Early morning in one place is evening in the other, so calls usually work best at the start or end of the day. When you share a time, write the zone with it, such as "9:00 AM GMT", and remember that a time near midnight can fall on a different date on the other side.
Reverse: PST to GMT. Other converters: PKT to PST · GMT to PKT · EST to PST · GMT to EST · MST to PST · CST to PST · any time zone to your time
Frequently asked questions
What is the time difference between GMT and PST?
Right now US Pacific Time is 8 hours behind UK. The gap changes to 7 hours on October 25, 2026 when daylight saving time starts or ends.
What time is it in US Pacific Time when it is 9 AM in UK?
1:00 AM.
What is 8 PM GMT in PST?
12:00 PM PDT.
Does the GMT to PST difference change during the year?
Yes. One or both places use daylight saving time, so the gap changes on October 25, 2026 and November 2, 2026.
How do I convert GMT to PST?
Enter the GMT time and date at the top. The converter applies the difference for that date, including daylight saving time.
What is 12 PM GMT in PST?
4:00 AM today.
What is 6 PM GMT in PST?
10:00 AM today.
What is the best time for a call between UK and US Pacific Time?
Pick a time that is in working hours in both places; the hour-by-hour table on this page shows both clocks side by side.