At Sat, 20 Sep 2003 20:18:48 +0200, Oscar van Vlijmen <ovv@hetnet.nl> writes:
The information in http://www.mme.gov.br/noticias/2003/setembro/Nota%20Informativa_HV.pdf is a RECOMMENDATION from the Ministry of Mines & Energy. Very likely a presidential decree will follow some time later.
Is it plausible that any presidential decree will differ from <http://www.mme.gov.br/noticias/2003/setembro/18.09.2003.htm>? I don't know Brazilian politics, unfortunately; nor can I read Portuguese. But I don't see anything in that press release that indicates that it's merely a recommendation, and might change.
To me it is not clear what the start-ending times are. Is there any proof that 0 h wall clock time and 24 h wall clock time are used for _all_ time zones?
That's the natural assumption, as it's what seems to have been done in the past. I'd expect more-specific language if they wanted all the clocks to change simultaneously.
See also decree no. 2784 from 1913 about the definition of the "legal hour".
Sorry, I don't have access to that document.
There are no DST related decrees after no. 4399 on the presidential decrees lists for 2002 and 2003, up to decree no. 4842 from Sept. 18 2003.
http://www.presidencia.gov.br/ccivil_03/decreto/Quadros/2002.htm http://www.presidencia.gov.br/ccivil_03/decreto/2003/_quadro.htm
I'd suggest: keep watching the latter page!
That's a good suggestion. But should we hold up on updating the tz database until after a decree is issued?