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GMT to PST Converter

Pacific Time is usually 8 hours behind London.

UK timeLondon

--:--

 

GMT
—difference

Pacific TimeLos Angeles

--:--

 

PST

Strict GMT to PST is 8 hours and GMT to PDT is 7. London (GMT/BST) and Los Angeles (PST/PDT) both use daylight time, but switch on different dates.

Convert UK to PT

— Pacific Time

GMT to PST conversion table

Formula: Pacific Time = UK time − 8 hours. Strict GMT/UTC is always 1 hour behind the BST figure.

UKPT (all year)
12:00 AM4:00 PM prev day
1:00 AM5:00 PM prev day
2:00 AM6:00 PM prev day
3:00 AM7:00 PM prev day
4:00 AM8:00 PM prev day
5:00 AM9:00 PM prev day
6:00 AM10:00 PM prev day
7:00 AM11:00 PM prev day
8:00 AM12:00 AM
9:00 AM1:00 AM
10:00 AM2:00 AM
11:00 AM3:00 AM
12:00 PM4:00 AM
1:00 PM5:00 AM
2:00 PM6:00 AM
3:00 PM7:00 AM
4:00 PM8:00 AM
5:00 PM9:00 AM
6:00 PM10:00 AM
7:00 PM11:00 AM
8:00 PM12:00 PM
9:00 PM1:00 PM
10:00 PM2:00 PM
11:00 PM3:00 PM

The US and UK change clocks on different dates, so for a few weeks a year the gap is 1 hour smaller than usual. In 2026: Mar 8–Mar 29 and Oct 25–Nov 1. The live clocks above always use the real current offset.

Best meeting times

Working hours that overlap between London and Los Angeles:

  • no 9-to-5 overlap; best compromise (7 AM–9 PM both sides): 3:00 PM–9:00 PM UK = 7:00 AM–1:00 PM PT.

Frequently asked questions

What is 5 PM GMT in PST?

5:00 PM GMT is 9:00 AM PST the same day. Subtract 8 hours.

Is London always 8 hours ahead of California?

Almost. For about 3 weeks in March and 1 week around the start of November the difference is 7 hours, because the US and UK change clocks on different weekends.

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