UK Time is 8 hours ahead of Pacific Time right now (until Oct 24, 2026); the gap changes to 7 hours when clocks change for daylight saving time. So 12:00 PM PDT = 8:00 PM BST at the moment. (Pacific Time is on PDT and UK Time is on BST for daylight saving time right now.)
PST to GMT conversion table
| PST | BST when PST is PDT | GMT when PST is PDT |
|---|---|---|
| 12:00 AM | 8:00 AM | 7:00 AM |
| 1:00 AM | 9:00 AM | 8:00 AM |
| 2:00 AM | 10:00 AM | 9:00 AM |
| 3:00 AM | 11:00 AM | 10:00 AM |
| 4:00 AM | 12:00 PM | 11:00 AM |
| 5:00 AM | 1:00 PM | 12:00 PM |
| 6:00 AM | 2:00 PM | 1:00 PM |
| 7:00 AM | 3:00 PM | 2:00 PM |
| 8:00 AM | 4:00 PM | 3:00 PM |
| 9:00 AM | 5:00 PM | 4:00 PM |
| 10:00 AM | 6:00 PM | 5:00 PM |
| 11:00 AM | 7:00 PM | 6:00 PM |
| 12:00 PM | 8:00 PM | 7:00 PM |
| 1:00 PM | 9:00 PM | 8:00 PM |
| 2:00 PM | 10:00 PM | 9:00 PM |
| 3:00 PM | 11:00 PM | 10:00 PM |
| 4:00 PM | 12:00 AM +1 day | 11:00 PM |
| 5:00 PM | 1:00 AM +1 day | 12:00 AM +1 day |
| 6:00 PM | 2:00 AM +1 day | 1:00 AM +1 day |
| 7:00 PM | 3:00 AM +1 day | 2:00 AM +1 day |
| 8:00 PM | 4:00 AM +1 day | 3:00 AM +1 day |
| 9:00 PM | 5:00 AM +1 day | 4:00 AM +1 day |
| 10:00 PM | 6:00 AM +1 day | 5:00 AM +1 day |
| 11:00 PM | 7:00 AM +1 day | 6:00 AM +1 day |
PST and GMT difference through 2027
The gap between the two zones on each date range, including daylight saving time changes:
| Dates | Pacific Time | UK Time | Difference |
|---|---|---|---|
| Sep 30, 2026 – Oct 24, 2026 | PDT (UTC−7) | BST (UTC+1) | GMT 8 hours ahead |
| Oct 25, 2026 – Oct 31, 2026 | PDT (UTC−7) | GMT (UTC+0) | GMT 7 hours ahead |
| Nov 1, 2026 – Mar 13, 2027 | PST (UTC−8) | GMT (UTC+0) | GMT 8 hours ahead |
| Mar 14, 2027 – Mar 27, 2027 | PDT (UTC−7) | GMT (UTC+0) | GMT 7 hours ahead |
| Mar 28, 2027 – Oct 30, 2027 | PDT (UTC−7) | BST (UTC+1) | GMT 8 hours ahead |
| Oct 31, 2027 – Nov 6, 2027 | PDT (UTC−7) | GMT (UTC+0) | GMT 7 hours ahead |
| Nov 7, 2027 – Dec 31, 2027 | PST (UTC−8) | GMT (UTC+0) | GMT 8 hours ahead |
Best time to meet or call
- When GMT is 8 hours ahead of PST: Standard 9 AM–5 PM working hours don't overlap. The best compromise is usually early morning in Pacific Time (8:00 AM–9:00 AM), which is 4:00 PM–5:00 PM in UK Time.
- When GMT is 7 hours ahead of PST: Working hours (9 AM–5 PM) overlap from 9:00 AM–10:00 AM PST (4:00 PM–5:00 PM GMT), about 1 hour.
About Pacific Time (PST)
Pacific Time uses PST (UTC−8) in winter and PDT (UTC−7) during daylight saving time. It's used in Los Angeles, San Francisco, San Diego, Seattle, Portland, Las Vegas and Vancouver.
About UK Time (GMT)
The UK uses GMT (UTC+0) in winter and British Summer Time, BST (UTC+1), from the last Sunday in March to the last Sunday in October. It's used in London, Manchester, Birmingham, Edinburgh, Cardiff and Belfast.
Frequently asked questions
What time is 12 PM PST in GMT?
12:00 PM PDT is 8:00 PM BST right now (Sep 30, 2026 to Oct 24, 2026). The answer changes when either zone changes its clocks for daylight saving time.
How many hours ahead or behind is GMT from PST?
Currently 8 hours ahead of PST. During the year the difference is 8 hours ahead of PST or 7 hours ahead of PST, depending on daylight saving time. See the table on this page for exact dates.
Does PST change for daylight saving time?
Yes. Pacific Time uses PST (UTC−8) in winter and PDT (UTC−7) during daylight saving time.
Does GMT change for daylight saving time?
Yes. The UK uses GMT (UTC+0) in winter and British Summer Time, BST (UTC+1), from the last Sunday in March to the last Sunday in October.
What is the best time for a call between PST and GMT?
Working hours don't overlap. Early morning in Pacific Time or evening in UK Time usually works best.
Is it PST or PDT right now?
Pacific Time uses PST in winter and PDT from the second Sunday in March to the first Sunday in November. The live clock on this page shows which one applies today.
More time zone conversions
- GMT to PST (reverse)
- PST to EST
- PST to CST
- PST to MST
- PST to IST
- IST to GMT
- EST to GMT
- PST to UTC
- All time zones
Sources
Reviewed by Gurmej Singh, Founder, Divy Digital Hub · Last reviewed: Wednesday, September 30, 2026. All calculations run in your browser. Editorial policy.