Dear sirs, Below are the patches (with full comments) for adjusting zone information for South America, due to Brazilian changing of beginning and ending dates for adoption of summer time. Patches can be applied to version 7.36 (as available from ftp://elsie.nci.nih.gov at 2000/10/04 00:00 GMT), and they are in unified diff format. I am also sending the full altered file, as a GNU-zip compressed attachment. Regards, Paulo A. P. Pires -- p@ppires.org 8<---------------------------------------------- --- /usr/src/share/zoneinfo/southamerica.orig Tue Oct 3 22:03:37 2000 +++ /usr/src/share/zoneinfo/southamerica Tue Oct 3 23:06:56 2000 @@ -367,8 +367,23 @@ # adds SE, AL, PE, PR, RN, CE, PI, MA and RR. # These give only one year's rules. After that, the rules are guesses # and are quite possibly wrong, but are more likely than no DST at all. -Rule Brazil 1999 max - Oct Sun>=1 0:00 1:00 S -Rule Brazil 2000 max - Feb lastSun 0:00 0 - +Rule Brazil 1999 only - Oct Sun>=1 0:00 1:00 S +Rule Brazil 2000 only - Feb lastSun 0:00 0 - +# +# From Paulo A. P. Pires (2000-10-03) +# Brazil changed rules once again. Late decree with poor announcement +# (even some telephone companies had their services one hour ahead of legal +# for a short time). +# According to sources in the Research Group on Energy, from the Institute of +# Economics of the Federal University of Rio de Janeiro, initial and final +# summer time dates were not originally supposed to change from previous year, +# but people in northern states don't like summer time (for the obvious reason +# that is not as effective, but rather uncomfortable, near the Equator line). +# Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3592</A> (2000/09/06) lists +# the following states to obey summer time: RS, SC, PR, SP, RJ, ES, MG, GO, +# MT, MS, TO, BA, SE, AL, PE, RN, CE, PI, MA, RR and DF. +Rule Brazil 2000 max - Oct Sun>=8 0:00 1:00 S +Rule Brazil 2001 max - Feb Sun>=18 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] ------------------------------------------->8 -- Pappires ... Qui habet aurem audiendi audiat quid Spiritus dicat ecclesiis.