London to Port Arthur time converter

Port Arthur is 6 hours behind London. When it is 9:00 AM in London, it is 3:00 AM in Port Arthur.

London BST

Wednesday, October 21, 2026

Port Arthur CDT

Tuesday, October 20, 2026

London
United Kingdom
Wed, Oct 21
BSTUTC+1
Port Arthur
Texas, United States
Tue, Oct 20
CDTUTC-5-6h
Finding your time zone…
Shared working hours (9:00–18:00)

London to Port Arthur conversion table

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

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

Best time to call or meet

Both sides are at work from 3:00 PM – 6:00 PM in London (9:00 AM – 12:00 PM in Port Arthur).

Daylight saving time and the difference

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

  • Oct 21, 2026 – Oct 25, 2026: -6h
  • Oct 25, 2026 – Nov 1, 2026: -5h
  • Nov 1, 2026 – Mar 14, 2027: -6h
  • Mar 14, 2027 – Mar 28, 2027: -5h
  • Mar 28, 2027 – Oct 21, 2027: -6h

Distance

London and Port Arthur are 7,702 km (4,786 miles) apart in a straight line.

More conversions

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New York to Port ArthurLos Angeles to Port ArthurChicago to Port ArthurToronto to Port ArthurSão Paulo to Port ArthurParis to Port ArthurBerlin to Port ArthurMoscow to Port ArthurDubai to Port ArthurNew Delhi to Port ArthurBangkok to Port ArthurSingapore to Port Arthur

Questions and answers

What is the time difference between London and Port Arthur?

Port Arthur is 6 hours behind London.

What time is it in Port Arthur when it is 9 AM in London?

When it is 9:00 AM in London, it is 3:00 AM in Port Arthur.

When is the best time to call Port Arthur from London?

Both sides are at work from 3:00 PM – 6:00 PM in London (9:00 AM – 12:00 PM in Port Arthur).

Does the time difference between London and Port Arthur change?

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