Responses on the mailing list indicate that use of 24:00 in timezone source files is the way to go where appropriate. The question now is: where is where? There are four places currently using a "lastFri 0:00" rule for the start of DST now and into the future: Script started on Tue May 05 09:43:53 2009 lecserver$ grep -i max.*lastfri.*0:00.*1:00 * africa:Rule Egypt 1995 max - Apr lastFri 0:00s 1:00 S asia:Rule Jordan 2002 max - Mar lastFri 0:00s 1:00 S asia:Rule Palestine 2009 max - Mar lastFri 0:00 1:00 S asia:Rule Syria 2009 max - Mar lastFri 0:00 1:00 S lecserver$ exit script done on Tue May 05 09:44:14 2009 We've seen a report that Jordan should really be "...Mar lastThu 24:00..." What of the other three areas? (Alas, Egypt is the only one of the three where a look at old newspapers might help.) --ado