In article <75cde5e6-7933-4cc9-b5c2-b4f0c02bbdcf@12g2000pri.googlegroups.com>, David Wilson <mcs6502@gmail.com> wrote: > http://en.wikipedia.org/wiki/Zeller%27s_congruence Thanks, but for the value to me, once a month, I'll stick with a calendar <g>