London to Mar del Plata time converter

Mar del Plata is 4 hours behind London. When it is 9:00 AM in London, it is 5:00 AM in Mar del Plata.

London BST

Wednesday, October 21, 2026

Mar del Plata ART

Wednesday, October 21, 2026

United Kingdom
Wed, Oct 21
BSTUTC+1
Argentina
Wed, Oct 21
ARTUTC-3-4h
Finding your time zone…

7:55 AM in London, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

London to Mar del Plata conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

The difference changes during the year because London and Mar del Plata switch clocks on different dates:

  • Oct 21, 2026 – Oct 25, 2026: -4h
  • Oct 25, 2026 – Mar 28, 2027: -3h
  • Mar 28, 2027 – Oct 21, 2027: -4h

Distance

London and Mar del Plata are 11,407 km (7,088 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between London and Mar del Plata?

Mar del Plata is 4 hours behind London.

What time is it in Mar del Plata when it is 9 AM in London?

When it is 9:00 AM in London, it is 5:00 AM in Mar del Plata.

When is the best time to call Mar del Plata from London?

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

Does the time difference between London and Mar del Plata change?

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