Time difference: London and Porto Alegre

Porto Alegre is 4 hours behind London.

Porto Alegre is 4 hours behind London. London is UTC+1. Porto Alegre is UTC-3.

London on 15 October 2026: sunrise 07:24, sunset 18:07, day length 10 h 43 min.

Porto Alegre on 15 October 2026: sunrise 05:46, sunset 18:35, day length 12 h 48 min.

For London and Porto Alegre: The next clock change in London is 1 hour back on 25 October 2026 at 02:00, from UTC+1 to UTC+0.

For Porto Alegre and London: Porto Alegre has no clock change scheduled in the next year. The last year with a seasonal offset change was 2019. The offset now is UTC-3.

When the difference changes
Change
The gap changes on 25 October 2026 at 02:00, when clocks in London move back 1 hour.
The gap changes on 28 March 2027 at 01:00, when clocks in London move forward 1 hour.
The gap changes on 31 October 2027 at 02:00, when clocks in London move back 1 hour.
Working hours from each side
View09:00 to 17:00
From LondonLondon 13:00 to 17:00; Porto Alegre 09:00 to 13:00
From Porto AlegrePorto Alegre 09:00 to 13:00; London 13:00 to 17:00
Hours in London and Porto Alegre. Shaded cells are 09:00 to 17:00. The stronger shade is when both are.
LondonPorto Alegre
00:0020:00 (previous day)
01:0021:00 (previous day)
02:0022:00 (previous day)
03:0023:00 (previous day)
04:0000:00
05:0001:00
06:0002:00
07:0003:00
08:0004:00
09:0005:00
10:0006:00
11:0007:00
12:0008:00
13:0009:00
14:0010:00
15:0011:00
16:0012:00
17:0013:00
18:0014:00
19:0015:00
20:0016:00
21:0017:00
22:0018:00
23:0019:00
Sun this year
CityLongest dayShortest day
London with Porto Alegre21 June 2026, 16 h 38 min21 December 2026, 7 h 50 min
Porto Alegre with London21 December 2026, 14 h 5 min21 June 2026, 10 h 13 min
Next public holidays
CityDateHoliday
London and Porto Alegre25 December 2026Christmas Day
London and Porto Alegre26 December 2026Boxing Day
Porto Alegre and London25 October 2026Dia de Eleição
Porto Alegre and London2 November 2026Dia de Finados