London to Petaluma time converter

Petaluma is 8 hours behind London. When it is 9:00 AM in London, it is 1:00 AM in Petaluma.

London BST

Tuesday, October 20, 2026

Petaluma PDT

Monday, October 19, 2026

London
United Kingdom
Tue, Oct 20
BSTUTC+1
Petaluma
California, United States
Mon, Oct 19
PDTUTC-7-8h
Finding your time zone…
Shared working hours (9:00–18:00)

London to Petaluma conversion table

Every hour of today in London and the matching time in Petaluma. Light rows are typical working hours (9:00–18:00).

LondonPetaluma
12:00 AM4:00 PM−1 day
1:00 AM5:00 PM−1 day
2:00 AM6:00 PM−1 day
3:00 AM7:00 PM−1 day
4:00 AM8:00 PM−1 day
5:00 AM9:00 PM−1 day
6:00 AM10:00 PM−1 day
7:00 AM11:00 PM−1 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

Best time to call or meet

Both sides are at work from 5:00 PM – 6:00 PM in London (9:00 AM – 10:00 AM in Petaluma).

Daylight saving time and the difference

The difference changes during the year because London and Petaluma switch clocks on different dates:

  • Oct 20, 2026 – Oct 25, 2026: -8h
  • Oct 25, 2026 – Nov 1, 2026: -7h
  • Nov 1, 2026 – Mar 14, 2027: -8h
  • Mar 14, 2027 – Mar 28, 2027: -7h
  • Mar 28, 2027 – Oct 20, 2027: -8h

Distance

London and Petaluma are 8,584 km (5,334 miles) apart in a straight line.

More conversions

Petaluma to LondonLondon to New YorkLondon to Los AngelesLondon to ChicagoLondon to TorontoLondon to São PauloLondon to ParisLondon to BerlinLondon to MoscowLondon to DubaiLondon to New DelhiLondon to BangkokLondon to Singapore
New York to PetalumaLos Angeles to PetalumaChicago to PetalumaToronto to PetalumaSão Paulo to PetalumaParis to PetalumaBerlin to PetalumaMoscow to PetalumaDubai to PetalumaNew Delhi to PetalumaBangkok to PetalumaSingapore to Petaluma

Questions and answers

What is the time difference between London and Petaluma?

Petaluma is 8 hours behind London.

What time is it in Petaluma when it is 9 AM in London?

When it is 9:00 AM in London, it is 1:00 AM in Petaluma.

When is the best time to call Petaluma from London?

Both sides are at work from 5:00 PM – 6:00 PM in London (9:00 AM – 10:00 AM in Petaluma).

Does the time difference between London and Petaluma change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.