Jesper Norgaard Welen [mailto:jnorgard at prodigy.net.mx] did write as follows: How about a simpler version: ... 8:00 1:00 WST 1992 Mar Sun>=1 2:00s 8:00 - WST 2006 Dec Sun>=1 2:00s 8:00 - AS 2009 Mar lastSun 2:00s 8:00 - WST To which I respond thusly: Should that third line instead read "8:00 AS WST 2009 Mar lastSun 2:00s"?