On 2021-02-07 08:48, Alois Treindl wrote:
TZ claims that in 1950 there was no DST in Portugal, zone Europe/Lisbon.
While it was continuously applied between 1916 and 1965.
Not in 1922, 1923, 1930, 1933.
The sources quoted in file europe are poor, it is only Whitman versus Shanks/Pottenger.
I have researched an online law collection for Portugal at https://dre.pt/ and searched for 'hora de verão'. The results are sparse, but what I find on legal texts does not indicate any interruption of the 1916 law for the year 1950.
I think I have pdfs for all switches in Lisboa (not for Madeira and the Azores). I found them several years ago, so I'd rather like to check all the URLs before I send them to the list. Please give me a day or two. Madeira is an autonomous region since about 1976 and may do their own summer time rules, and they did.
This Wikipedia page shows a list https://pt.wikipedia.org/wiki/Lista_de_per%C3%ADodos_em_que_vigorou_o_hor%C3...
and mentions the Decreto-Lei nº 370/48 for 1949-1965.
That law says 'first Sunday in April to first Sunday in October.
No exception for 1950.
Here is a list from the Lisbon astronomical observatory, which says the same thing.
This is a reliable source since the OAL is responsible for the realization of legal time in Portugal. I remember they helped me get some of the decrees.
I suggest that the rules for Europe/Lisbon should be updated accordingly.
Yes, let's try. Michael Deckers.