I strongly agree with Nicolas, the event last week was caused by a previous *guess* as you can see here (http://article.gmane.org/gmane.comp.time.tz/2015) and has been causing several problems in our systems these days. Our government hasn't released any new law describing DST for this year so there isn's any reason to include 2008 (and future) Rules for Argentina.
In my case i haven't included the '08s Rule in my tzdata last year, but i'm using some JAVA software that has included it in their tzupdater tool. Now i have to wait for a fixed tzdata and then wait for SUN to release the tzupdater tool including that tzdata.
Please do not make the same mistake twice, the rules should be based on laws or formal government announcements.
Thanks ezequiel
The decree 1693/2008 was published today in Argentina stating the following rule for the 2008/2009 DST scheme. - Switch to GMT -02:00 on 3rd Sunday of October 2008, 00:00:00hs. - Switch back to GMT -03:00 on 3rd Sunday of March 2009, 00:00:00hs. http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx? fp=16102008π=3&pf=4&s=0&sec=01 Regards ezequiel