London to Río Segundo time converter

Río Segundo is 4 hours behind London. When it is 9:00 AM in London, it is 5:00 AM in Río Segundo.

London BST

Monday, October 19, 2026

Río Segundo ART

Monday, October 19, 2026

London
United Kingdom
Mon, Oct 19
BSTUTC+1
Río Segundo
Argentina
Mon, Oct 19
ARTUTC-3-4h
Finding your time zone…
Shared working hours (9:00–18:00)

London to Río Segundo conversion table

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

LondonRío Segundo
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 Río Segundo).

Daylight saving time and the difference

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

  • Oct 19, 2026 – Oct 25, 2026: -4h
  • Oct 25, 2026 – Mar 28, 2027: -3h
  • Mar 28, 2027 – Oct 19, 2027: -4h

Distance

London and Río Segundo are 11,139 km (6,921 miles) apart in a straight line.

More conversions

Río Segundo 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 Río SegundoLos Angeles to Río SegundoChicago to Río SegundoToronto to Río SegundoSão Paulo to Río SegundoParis to Río SegundoBerlin to Río SegundoMoscow to Río SegundoDubai to Río SegundoNew Delhi to Río SegundoBangkok to Río SegundoSingapore to Río Segundo

Questions and answers

What is the time difference between London and Río Segundo?

Río Segundo is 4 hours behind London.

What time is it in Río Segundo when it is 9 AM in London?

When it is 9:00 AM in London, it is 5:00 AM in Río Segundo.

When is the best time to call Río Segundo from London?

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

Does the time difference between London and Río Segundo change?

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