On 2016-10-24 15:59, Pierpaolo Bernardi wrote:
This page http://www.renzobaldini.it/le-ore-legali-in-italia/ has still diferent data for 1944.
It divides Italy in two, as there were effectively two governments at the time, north of gotic line (https://en.wikipedia.org/wiki/Gothic_Line) German controlled territory, official government RSI (https://en.wikipedia.org/wiki/Italian_Social_Republic), and south of gothic line, controlled by allied armies.
Data for neither of the two zones agrees with INRIM, as far as I can tell from a cursory examination. Yes, this has puzzled me. It turns out that the INRiM page is wrong for both changes in 1944: the switch they give for summer time is the one obeying C-Eur Rules and was applied in RSI but not south of the Gothic line; the switch to winter time on Sep 17 went from 03 to 02 h, not from 02 to 01 h as given by INRiM: -Rule Italy 1944 only - Apr 3 2:00 1:00 S +Rule Italy 1944 only - Apr 2 2:00 1:00 S +Rule Salò 1944 only - Apr 3 2:00 1:00 S -Rule Italy 1944 only - Sep 17 2:00 0 - +Rule Italy 1944 only - Sep 17 3:00 0 - +Rule Salò 1944 only - Oct 2 3:00 0 - The source [http://www.ac-ilsestante.it/MERIDIANE/ora_legale/ ORA_LEGALE_ESTIVA_IN_ITALIA.htm] is correct.
The correct switches applying in Rome (in the "regno") in 1944 can be looked up in [augusto.agid.gov.it/gazzette/index/download/id/1944062_P1S.pdf] on page 374, DECRETO LEGISLATIVO LUOGOTENENZIALE 14 settembre 1944, n. 219: .... Visto il R. decreto-legge 29 marzo 1944, n. 92, col quale l'ora normale è stata anticipata di sessanta mi- nuti primi a partire dalle ore due del 2 aprile 1944;. [Considering the royal law-decree 1944 March 29, n. 92, by which standard time has been advanced by sixty minutes from 1944 April 2, two hours] .... A partire dalle ore tre del giorno 17 settembre 1944 é ripristinata l'ora normale. [From three hours on the day 1944 September 17 standard time is resumed.] The text goes on to explain that the jump causes the hours from 02 h until 03 h to be repeated, so that we can be certain that a jump from 03h to 02 h is implied. One could even argue that the text implies that 02:00 is assumed twice but 03:00 is not (so that the time scale is a right continuous function of UT). The decree was issued in Rome on 1944-09-14 (very short notice!) and signed UMBERTO DI SAVOIA. The corresponding switch in the RSI can be looked up in [http://augusto.agid.gov.it/gazzette/index/download/id/1944229_P1_GI.pdf] on page 1512. It uses the C-Eur rules and is signed MUSSOLINI. Nice history lesson! Michael Deckers.