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PST
US West Coast
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GMT
United Kingdom
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PST to GMT Conversion Table

Offset: PST +8 hours = GMT. Applies during standard time. Work hours (9 AM–5 PM) highlighted.

PST GMT
00:00 08:00
01:00 09:00
02:00 10:00
03:00 11:00
04:00 12:00
05:00 13:00
06:00 14:00
07:00 15:00
08:00 16:00
09:00 17:00
10:00 18:00
11:00 19:00
12:00 20:00
13:00 21:00
14:00 22:00
15:00 23:00
16:00 00:00 (+1 day)
17:00 01:00 (+1 day)
18:00 02:00 (+1 day)
19:00 03:00 (+1 day)
20:00 04:00 (+1 day)
21:00 05:00 (+1 day)
22:00 06:00 (+1 day)
23:00 07:00 (+1 day)

West Coast US teams coordinating with London offices face one of the wider gaps in common business pairings. This conversion matters for game studios, SaaS companies, and financial firms managing cross-Atlantic workflows.

Add 8 hours to Pacific Time to get London time during standard months. A 9 AM call in San Francisco starts at 5 PM in London, which is the tail end of the UK workday. By 10 AM Pacific, London has clocked out.

The asymmetric DST switches between the US and UK create short transition windows where the gap shrinks to 7 hours. Teams that schedule recurring meetings across this pair should review timing during the last two weeks of March and the last week of October.

Daylight Saving Time: What Changes

Both PST and GMT observe daylight saving time. Since they typically switch on the same schedule, the 8-hour difference stays constant year-round — except during the brief transition windows when one zone has switched and the other hasn't yet. During those 1-2 weeks, the offset shifts by one hour.

Frequently Asked Questions

How do I convert PST to London time?

Add 8 hours for most of the year. 9 AM PST is 5 PM GMT. During the brief transition weeks in March and October/November when DST schedules differ, add 7 hours instead.

Why is the PST-to-GMT gap sometimes 7 hours?

The US and UK switch to daylight saving on different weekends. For two to three weeks each spring and about one week each autumn, one side has changed clocks while the other has not, temporarily shrinking the gap to 7 hours.

What meeting times work for both San Francisco and London?

The realistic window is 8–9:30 AM Pacific, which corresponds to 4–5:30 PM in London. Anything later Pacific-side means London is past normal working hours. Some teams use an 8 AM Pacific slot to catch London at 4 PM.

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