Does London observe daylight saving time?

Yes. London is on BST (UTC+1) now, and its clocks go back 1 hour on Sun, Oct 25, to GMT (UTC+0).

Does San Diego observe daylight saving time?

Yes. San Diego is on PDT (UTC-7) now, and its clocks go back 1 hour on Sun, Nov 1, to PST (UTC-8).

What time is it in San Diego when it's 9 AM in London?

1:00 AM in San Diego, on the same day.

London to San Diego Meeting Planner

San Diego is 8 hours behind London right now. Their working days don't overlap today.

London · United Kingdom

7:13 PM

Sat, Oct 17 · BST · summer time

San Diego · United States

11:13 AM

Sat, Oct 17 · PDT · summer time

Best Meeting Times Between London and San Diego

No time falls inside working hours (9 AM to 5 PM) in both cities. The closest is 3:00 PM in London, which is 7:00 AM in San Diego; consider splitting into two shorter meetings or shifting someone's hours.

Who's meeting

2 of 4 places

LondonOrganizerUnited Kingdom ·· summer time7:13PMnow
San DiegoUnited States ·· summer time11:13AMnow

Add a city

Add up to 4 places by city, country, time zone or abbreviation, like Tokyo, India or JST. Press "/" to jump here.

Date in London

Working hours, everywhere

Best times to meet

Saturday, October 17, 2026, in London time.

3:00PMBest · GoodWorking hours in London (15:00); just outside working hours in San Diego (07:00).
4:00PMOption 2 · GoodWorking hours in London (16:00); just outside working hours in San Diego (08:00).
5:00PMOption 3 · GoodWorking hours in San Diego (09:00); just outside working hours in London (17:00).

The whole day

Pick any slot in the Fit row, or use the arrow keys there, to make it the meeting time.

Each column is a one-hour slot of the first place's day. The Fit row grades how well the slot suits everyone; each row shows the local time and whether it's working hours there.
Fit
LondonBST
San DiegoPDT
UTC	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22

Working hours (09–17)Just outside (07–09, 17–20)Late evening (20–23)NightFit: optimal, good, possible, poor

Your meeting

London3:00 PM BSTSat, Oct 17
San Diego7:00 AM PDTSat, Oct 17
UTC2026-10-17 14:00 UTC

What will it cost? Try the meeting cost calculator.

Time difference between London and San Diego

San Diego is 8 hours behind London right now: San Diego is on PDT (UTC-7) and London on BST (UTC+1). That changes on Sun, Oct 25, when clocks go back in London: then San Diego is 7 hours behind London.

Time difference between London and San Diego over the next 12 months
From	Difference	Why
Now	San Diego 8 hours behind	—
Sun, Oct 25	San Diego 7 hours behind	Clocks go back in London
Sun, Nov 1	San Diego 8 hours behind	Clocks go back in San Diego
Sun, Mar 14, 2027	San Diego 7 hours behind	Clocks go forward in San Diego
Sun, Mar 28, 2027	San Diego 8 hours behind	Clocks go forward in London

London is on Greenwich Mean Time. San Diego is on Pacific Standard Time.

Frequently Asked Questions: London & San Diego Scheduling

What is the time difference between London and San Diego?: San Diego is 8 hours behind London right now: San Diego is on PDT (UTC-7) and London on BST (UTC+1). That changes on Sun, Oct 25, when clocks go back in London: then San Diego is 7 hours behind London.
What is the best time to schedule a meeting between London and San Diego?: No time falls inside working hours (9 AM to 5 PM) in both cities. The closest is 3:00 PM in London, which is 7:00 AM in San Diego; consider splitting into two shorter meetings or shifting someone's hours.
Does London observe daylight saving time?: Yes. London is on BST (UTC+1) now, and its clocks go back 1 hour on Sun, Oct 25, to GMT (UTC+0).
Does San Diego observe daylight saving time?: Yes. San Diego is on PDT (UTC-7) now, and its clocks go back 1 hour on Sun, Nov 1, to PST (UTC-8).
What time is it in San Diego when it's 9 AM in London?: 1:00 AM in San Diego, on the same day.

Or see every city pair, or plan with more places in the meeting planner.