[FUGSPBR] Re: [FUGSPBR] Time Zone do FreeBSD

[Ricardo Campos Passanezi]

On Thu, Nov 14, 2002 at 11:37:48AM -0200, Marcio Merlone wrote:
> 
> No, no, no, no.... o "S" significa "Standard" e o horário de verão tem a 
> letra "D", que significa "Dayligth não-sei-o-quê" :)

"No, no, no, no...." again :-)))

Veja (/usr/src/share/zoneinfo/southamerica):
# Earlier editions of these tables used the North American style (e.g. ARST and
# ARDT for Argentine Standard and Daylight Time), but the following quote
# suggests that it's better to use European style (e.g. ART and ARST).
#       I suggest the use of _Summer time_ instead of the more cumbersome
#       _daylight-saving time_.  _Summer time_ seems to be in general use
#       in Europe and South America.
#       -- E O Cutler, _New York Times_ (1937-02-14), quoted in
#       H L Mencken, _The American Language: Supplement I_ (1960), p 466
#
# Earlier editions of these tables also used the North American style
# for time zones in Brazil, but this was incorrect, as Brazilians say
# "summer time".  Reinaldo Goulart, a Sao Paulo businessman active in
# the railroad sector, writes (1999-07-06):
#       The subject of time zones is currently a matter of discussion/debate in
#       Brazil.  Let's say that "the Brasilia time" is considered the
#       "official time" because Brasilia is the capital city.
#       The other three time zones are called "Brasilia time "minus one" or
#       "plus one" or "plus two".  As far as I know there is no such
#       name/designation as "Eastern Time" or "Central Time".
# So I invented the following (English-language) abbreviations for now.
# Corrections are welcome!
#               std     dst
#       -2:00   FNT     FNST    Fernando de Noronha
#       -3:00   BRT     BRST    Brasilia
#       -4:00   AMT     AMST    Amazon
#       -5:00   ACT     ACST    Acre

> BRST e BRT são a mesma coisa, horário normal (o "S" pode ser omitido).
> BRDT é horário de verão.

Então: BRT  = std = standard
       BRST = dst = daylight savings time.

E dependendo da revisão do soutamerica que tiver, já tem (não sei se
isso funciona):

# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE.  
Rule    Brazil  2000    2001    -       Oct     Sun>=8   0:00   1:00    S
Rule    Brazil  2001    max     -       Feb     Sun>=15  0:00   0       -
# Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE.
# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm"></a>   
Rule    Brazil  2002    only    -       Nov      3       0:00   1:00    S
#
Rule    Brazil  2003    max     -       Oct     Sun>=8   0:00   1:00    S  
# The latest decree listed above says that the following states observe DST:
# BA, DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP, TO.
# 
# For dates after mid-2003, the above rules with TO="max" are guesses
# and are quite possibly wrong, but are more likely than no DST at all.


-- 
Ricardo Campos Passanezi -  Administrador de Rede
Chave PGP e GPG Pública em: http://www.ige.unicamp.br/~riccp
Instituto de Geociências -  http://www.ige.unicamp.br - UNICAMP
_______________________________________________________________
Sair da Lista: http://www2.fugspbr.org/mailman/listinfo/fugspbr
Historico: http://www4.fugspbr.org/lista/html/FUG-BR/