In looking into Europe/Rome, I see there is the following rule: # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Rome 0:49:56 - LMT 1866 Sep 22 (line 1660, europe, tzdb-2019a) In reading the page referenced in this 2016 thread on historical Italy time zones (https://mm.icann.org/pipermail/tz/2016-October/024363.html <https://mm.icann.org/pipermail/tz/2016-October/024363.html>), it states: "Regio Decreto del 22 Settembre 1866 n° 3224 di Re Vittorio Emanuele II ( in vigore dal 12 Dicembre 1866 ) Il servizio dei convogli nelle ferrovie, quello dei telegrafi, delle poste, delle messaggerie e dei piroscafi postali nelle Provincie Continentali del Regno d’Italia, verrà regolato col tempo medio di Roma a datare dal giorno in cui sarà attivato l’orario delle strade ferrate per la prossima stagione invernale 1866 – 1867.” (source: http://www.ac-ilsestante.it/MERIDIANE/ora_legale/ORA_LEGALE_ESTIVA_IN_ITALIA... <http://www.ac-ilsestante.it/MERIDIANE/ora_legale/ORA_LEGALE_ESTIVA_IN_ITALIA...>) This implies that the law went into effect on 12 December 1866, rather than the date of the decree (22 Sep 1866). This is further supported by this source: https://web.archive.org/web/20070824155341/http://www.iav.it/planetario/dida... <https://web.archive.org/web/20070824155341/http://www.iav.it/planetario/dida...>, which states: "In Italy in 1866 there were 6 railway times (Torino, Verona, Firenze, Roma, Napoli, Palermo). On that year it was decided to unify them, adopting the average time of Rome (even if this city was not yet part of the kingdom). On the 12th December 1866, on the starting of the winter time table, it took effect in the railways, the post office and the telegraph, not only for the internal service but also for the public. Moreover, without any particular law, but on a free initiative of the main Italian cities and as a consequence of the practical advantages of tying the railway time to the city time, and also for patriotic reasons ( Rome was not part of kingdom) it was decided to use the Rome time in public and private life producing thus a national time. Milano set the public watches on the Rome time on the same day (12th December 1866), Torino and Bologna on the 1st January 1867, Venezia the 1st May 1880 and the last city was Cagliari in 1886.” I wonder if the rule should be modified to 1866 Dec 12, instead of 1866 Sep 22? Stephen Trainor
Stephen Trainor wrote on 07/05/2019 05:13:
In reading the page referenced in this 2016 thread on historical Italy time zones (https://mm.icann.org/pipermail/tz/2016-October/024363.html), it states:
"Regio Decreto del 22 Settembre 1866 n° 3224 di Re Vittorio Emanuele II ( in vigore dal 12 Dicembre 1866 )
For further reference, this is the scan of the decree: http://www.radiomarconi.com/marconi/filopanti/1866c.jpg included in http://www.radiomarconi.com/marconi/filopanti/index.html The decree consists of two articles. Article 1 says that railways, telegraph and postal services of continental province of the reign will use the time of Rome Article 2 says that Sicily will use a meridian on the city of Palermo and Sardinia will use a meridian of the city of Cagliari. This article is not very detailed even in Italian. On the same webpage you find the scan of decree 490 of August 10 1893 that consists of 3 articles. Article 1 says that the railwaiy reference time will be the solar mean time of the meridian located 15 degrees east of Greenwich, called Central Europe time Article 2 says that the hours will be numbered starting from midnight Article 3 says that Articles 1 and 2 will be effective starting from 00:00 of November 1st 1893 (using time reference of article 1) According to the comment below the scan of this decree at 00:00 of November 1st 1893 (CET) in the continental Italy was 23:49, in Sicily 23:53 and in Sardinia 23:36. This was the first time continental Italy, and two major islands had the same time reference -- Ciao, luigi / +--[Luigi Rosa]-- \
Thanks for the correction and citations. Proposed patch attached, and installed into the development version.
participants (3)
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Luigi Rosa -
Paul Eggert -
Stephen Trainor