Time difference between London and Río Grande

Río Grande is 4 hours behind London.

Europe/London America/Argentina/Ushuaia still the previous day

Local time in both cities

London · United Kingdom
00:46
Monday, 21 September 2026
Europe/London · UTC+01:00
Río Grande · Argentina
20:46
Sunday, 20 September 2026
America/Argentina/Ushuaia · UTC-03:00

Río Grande is 4 hours behind London.

still the previous day

Time zones

LondonEurope/London · UTC+01:00
Río GrandeAmerica/Argentina/Ushuaia · UTC-03:00

London is currently on daylight saving time (UTC+01:00). Next change: 2026-10-25 01:00.

Río Grande does not observe daylight saving and stays on UTC-03:00 all year.

Hour-by-hour conversion

Calculated for 2026-09-21 local time in London. The two places start and end daylight saving on different dates, so another day can give a different result.

London (source) Río Grande (target)
00:00 20:00 prev day
01:00 21:00 prev day
02:00 22:00 prev day
03:00 23:00 prev day
04:00 00:00
05:00 01:00
06:00 02:00
07:00 03:00
08:00 04:00
09:00 05:00
10:00 06:00
11:00 07:00
12:00 08:00
13:00 09:00
14:00 10:00
15:00 11:00
16:00 12:00
17:00 13:00
18:00 14:00
19:00 15:00
20:00 16:00
21:00 17:00
22:00 18:00
23:00 19:00

FAQ

How many hours apart are London and Río Grande right now?
The answer at the top of the page is calculated for the current moment and states which side is ahead. The gap changes during the year, because the two places usually start and end daylight saving on different dates.
Is this difference the same all year?
Not necessarily. London uses Europe/London and Río Grande uses America/Argentina/Ushuaia; if either observes daylight saving, the gap shifts during the year. Use “Convert a specific date and time” below to calculate it for a given day.
How do I read the conversion table?
The left column lists each whole hour in London; the right column is the local time in Río Grande at that same instant, with date rollovers marked. On the day clocks jump forward, some hours do not exist locally — the table says so instead of showing a plausible but wrong value.

Both cities