London to South Portland time converter

South Portland is 5 hours behind London. When it is 9:00 AM in London, it is 4:00 AM in South Portland.

London BST

Thursday, October 22, 2026

South Portland EDT

Wednesday, October 21, 2026

United Kingdom
Thu, Oct 22
BSTUTC+1
Maine, United States
Wed, Oct 21
EDTUTC-4-5h
Finding your time zone…

12:03 AM in London, Thursday, October 22, 2026

Shared working hours (9:00–18:00)

London to South Portland conversion table

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

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

Best time to call or meet

Both sides are at work from 2:00 PM – 6:00 PM in London (9:00 AM – 1:00 PM in South Portland).

Daylight saving time and the difference

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

  • Oct 22, 2026 – Oct 25, 2026: -5h
  • Oct 25, 2026 – Nov 1, 2026: -4h
  • Nov 1, 2026 – Mar 14, 2027: -5h
  • Mar 14, 2027 – Mar 28, 2027: -4h
  • Mar 28, 2027 – Oct 22, 2027: -5h

Distance

London and South Portland are 5,126 km (3,185 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between London and South Portland?

South Portland is 5 hours behind London.

What time is it in South Portland when it is 9 AM in London?

When it is 9:00 AM in London, it is 4:00 AM in South Portland.

When is the best time to call South Portland from London?

Both sides are at work from 2:00 PM – 6:00 PM in London (9:00 AM – 1:00 PM in South Portland).

Does the time difference between London and South Portland change?

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