Not having done this before, but reading the entries much like a cron entry, and using 2nd sunday March to 1st Sunday Nov, I would see the entries like this: Bruce Collins wrote: > EST5EDT > 0 3 24-30 4 1970-1973 0 EDT4 > 0 3 6 1 1974 0-6 EDT4 > 0 3 22-28 2 1975 0 EDT4 > 0 3 24-30 4 1976-1986 0 EDT4 > 0 3 1-7 4 1987-2006 0 EDT4 0 3 8-14 3 2007-2038 0 EDT4 > 0 1 25-31 10 1970-1973 0 EST5 > 0 1 24-30 11 1974 0 EST5 > 0 1 25-31 10 1975-2006 0 EST5 0 1 1-7 11 2007-2038 0 EST5 Columns are minute hour date-range month year or year-range dont'know TZ Keven Miller * To join/leave the list, search archives, change list settings, * * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *