Daylight saving time in Portugal

In Portugal, DST (locally known by "Hora de Verão" (summer-time)) was introduced in 1916. In the years 1922, 1923, 1925, 1930, 1933 and from 1967 to 1975 the DST was not applied.^[1] For many years the official hour in the Madeira Islands was Lisbon hour -1 and in the Azores Islands was Lisbon hour -2. Today, in the Madeira Islands the official hour is the same of Lisbon and in the Azores Islands is Lisbon hour -1.

List

DST in Continental Portugal^[2][3]

Year	Period	Decree
1916	23h of 17 June until 1h of 1 November	nº 2433 and nº 2712
1917 until 1921	00h of 1 March until 24h of 14 October	nº 2922 and nº 3446
1922 and 1923	there was no DST	nº 8038
1924	23h of 6 April until 24h of 4 October	nº 9592
1925	there was no DST	nº 10700
1926	23h of 17 April until 24h of 2 October	nº 11574 and 12411
1927	23h of 9 April until 24h of 1 October	nº 13384, 14312
1928	23h of 14 April until 24h of 6 October	nº15321 and 15984
1929	23h of 20 April until 24h of 5 October	nº 16704 and 17403
1930	there was no DST	-
1931	23h of 18 April until 24h of 3 October	nº 19522 and 20335
1932	23h of 2 April until 24h of 1 October	nº 20963 and 21098
1933	there was no DST	-
1934	23h of 7 April until 24h of 6 October	nº 23722
1935	23h of 30 March until 24h of 5 October	nº 25144
1936	23h of 18 April until 24h of 3 October	nº 26 460 and nº 27 034
1937	23h of 3 April until 24h of 2 October	nº 27591
1938	23h of 26 March until 24h of 1 October	nº 28 534 and nº 29 029
1939	23h of 15 April until 24h of 18 November	Portarias nº 9 187 and nº 9 334
1940	23h of 24 February until 24h of 7 October	Portarias nº 9465 and nº 9658
1941	23h of 5 April until 24h of 5 October	Portarias nº 9 764 and nº 9 900
1942	23h of 14 March until 24h of 24 October	Portaria nº 10 034
	23h of 25 April until 24h of 15 August[4]
1943	23h of 13 March until 24h of 30 October	Portaria nº 10 348
	23h of 17 April until 24h of 28 August[4]
1944	23h of 11 March until 24h of 28 October	Portarias nº 10 612, 10727, 10760
	23h of 22 April until 24h of 26 August[4]
1945	23h of 14 March until 24h of 28 October	Portaria nº 10 889, 11 059
	23h of 21 April until 24h of 25 August[4]
1946	23h of 6 April until 24h of 5 October	Portarias nº 11 299
1947	2h of 6 April until 3h of 5 October	Portarias nº 11 299
1948	2h of 4 April until 3h of 3 October	Portarias nº 11 299
1949 until 1965	2h of first Sunday of April until 3h of first Sunday of October	nº 37048
1966	2h of first Sunday of April até ao fim of ano	nº 47223
1967 until 1975	there was no DST [5]	nº 47223
1976	from start of the year until 1h of 26 September	nº 309/76
1977	0h of 27 March until 1h of 25 September	nº112/77
1978	1h of 2 April until 2h of 1 October	nº113/78
1979 and 1980	1h of first Sunday of April until 2h of last Sunday September	nº 112/79 and 69/80
1981 until 1985	0h of last Sunday of March until 1h of last Sunday September	nº 309/76
1986 until 1991	1h of last Sunday of March until 1h of last Sunday September	nº 44-B/86
1992	1h of last Sunday of March until end of year	nº 44-B/86 and 194/92
1993 until 1995	2h of last Sunday of March until 3h of last Sunday September[6]	nº 194/92
1996	of início of ano until 2h of 27 of October	nº 44-B/86, 17/96 and Directive of the European Parliament about summer time
after 1997	1h of last Sunday of March until 2h of last Sunday of October	Directive of the European Parliament about summer time

See also

• Time in Portugal

References

1. ^ "Hora Legal desde 1911 (Legal Hour since 1911)" (in Portuguese). http://www.oal.ul.pt/download/dadosoutros/HoraLegaldesde1911.pdf. 
2. ^ http://www.oal.ul.pt/download/dadosoutros/HoraLegaldesde1911.pdf
3. ^ http://pt.wikipedia.org/wiki/Anexo:Lista_de_per%C3%ADodos_em_que_vigorou_o_hor%C3%A1rio_de_ver%C3%A3o_em_Portugal
4. ^ ^{a b c d} double summer time
5. ^ until hora legal of Portugal continental permaneceu adiantada 1 hora em relação until hora TMG, entre 1967 and 1975, o que correspondeu na prática until uma hora of verão em vigência o ano inteiro.
6. ^ legal time of Portugal continental corresponds to 1 hora advance in relation to UTC in winter and to 2 hours in advance in relation to UTC in summer in the years 1993 until 1995.