On Fri, Apr 4, 2008 at 7:10 AM, <<a href="mailto:Saul.Z.Newman@kp.org">Saul.Z.Newman@kp.org</a>> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br><font size="2" face="sans-serif">i know hter are calendar mavens out
there. it there are 3 different simanim out of 14 possible
year combinations that sunday pesach can fall on [ 1 meubar,
2 pshutim], why is the frequency so rare? what dchiah causes
these combinations to be rare?</font></blockquote></div><br>All other things being equal, you would expect Pesah to be on any day of the week one year in 7, and it's on Sunday about 1 year in 9 on average, so it's not really so rare, it just seems that way because other days are more common.<br>
<br>In short, there is no dehhiya which postpones Pesah from Shabbat to Sunday (unless you count Molad Zaken which takes away as many as it adds), and GaTaRaD postpones from Sunday to Monday in about 1 year in 30.<br>