The Uruguayan decree now states that it will be EVERY year (at last!): +1 at 2AM the 1st sunday of october -1 at 2AM the 2nd sunday of march http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_... the patch to this file ftp://elsie.nci.nih.gov/pub/tzdata2006l.tar.gz ---------------------------------------------------------------------- --- southamerica.orig 2006-10-01 12:58:56.000000000 -0300 +++ southamerica 2006-10-01 13:07:22.543209977 -0300 @@ -1064,6 +1064,9 @@ # 02:00 local time, official time in Uruguay will be at GMT -2. Rule Uruguay 2005 only - Oct 9 2:00 1:00 S Rule Uruguay 2006 only - Mar 12 2:00 0 - +# http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_... +Rule Uruguay 2006 max - Oct Sun>=1 2:00 1:00 S +Rule Uruguay 2007 max - Mar Sun>=8 2:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 -3:44:44 - MMT 1920 May 1 # Montevideo MT ---------------------------------------------------------------------- thanks, Ciro