Hi, Im new to the list so forgive me if this has already been discused. I administer a bunch of Solaris and Linux (RedHat 6.x/7.x) machines and a month or so ago, all of the Linuxes went one hour early... It was quite clear that it was related to a timezone problem... the problem was I never quite understood the format of the zoneinfo files... anyway, I got the latest files from ftp://elsie.nci.nih.gov/pub/ to try to solve the problem, but it didn't work... I just saw that there is another release (2001b), but the bug is still there... I edited the southamerica file by hand not exactly knowing what I'm doing, but I kinda fixed it. The point is that as far as I remember, in the last 3 or 4 years, DST was not used (there were a few decrees and I think there was a failed national survey, but eventually, DST was not applied). Anyway, the "least damage" editing I could think of (not fully understanding the zoneinfo file logic) was deleting all the zone data regarding the year 2000 rule for all Argentine cities in the file (Buenos_Aires, Rosario, Cordoba, Jujuy, Catamarca and Mendoza). It worked, though I ain't quite sure if it will go wrong in October... Probably, the rule itself should be erased, though I didn't do it... Is there a somehow concise explanation of the format of the zoneinfo files, other than the comments in the file itself?... in fact, I only checked the southamerica file, maybe there is another one with a better explanation... I actually don't have the laws, decrees and/or Supreme Court roulings regarding DST to justify what I am doing, but I DO know what time is it now :-) (and the fact that it's 3 hours west from GMT, and that I didn't change to DST for more than a couple of years). If I get to understand the format and relationship betwenn Rules and Zones I can correct the Rules/Zones for the couple of last years... I actually don't have previous data, and given the conflicts DST generated the last time it was used (I can't even remember when that was) I don't think there IS a knowledgable source for the past, other than what was put in there by other people in the past. TIA. If you are interested this is the diff output: ================================================================= # diff southamerica.wrong southamerica.better 137d136 < -4:00 Arg AR%sT 2000 Mar 3 0:00 148d146 < -4:00 Arg AR%sT 2000 Mar 3 0:00 159d156 < -4:00 Arg AR%sT 2000 Mar 3 0:00 172d168 < -4:00 Arg AR%sT 2000 Mar 3 0:00 184d179 < -4:00 Arg AR%sT 2000 Mar 3 0:00 197d191 < -4:00 Arg AR%sT 2000 Mar 3 0:00 ================================================================= -- Mariano Absatz baby@baby.com.ar