London to Union City time converter

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

London BST

Tuesday, October 20, 2026

Union City PDT

Tuesday, October 20, 2026

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

London to Union City conversion table

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

LondonUnion City
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 Union City).

Daylight saving time and the difference

The difference changes during the year because London and Union City 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 Union City are 8,614 km (5,352 miles) apart in a straight line.

More conversions

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New York to Union CityLos Angeles to Union CityChicago to Union CityToronto to Union CitySão Paulo to Union CityParis to Union CityBerlin to Union CityMoscow to Union CityDubai to Union CityNew Delhi to Union CityBangkok to Union CitySingapore to Union City

Questions and answers

What is the time difference between London and Union City?

Union City is 8 hours behind London.

What time is it in Union City when it is 9 AM in London?

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

When is the best time to call Union City from London?

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

Does the time difference between London and Union City change?

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