Hi. I work at uol.com.br (a major brazilian ISP) and I experience problems with our "messy" summer time decree's. So this year we made the following changes to your's southamerica Rules: Yours: Rule Brazil 2003 max - Oct Sun>=8 0:00 1:00 S to Ours: Rule Brazil 2003 only - Oct 15 0:00 1:00 S This avoids to *major* problems. The first, when we set up a 'max' rule, this rule is valid to every year after, so, when the government delays the decree, we happen to see all our machines entering the 'summer time' way before the correct date. The second, the decree says February 15th, and not the first sunday after February 8th, as says your rule. I hope this helps. []'s Pablo Borges UOL sysadmin -- "Don't get me wrong: Emacs is a great operating system---it lacks a good editor, though." Quote from the "VI LOVERS HOMEPAGE" http://www.thomer.com/vi/vi.html