[Avodah] [Areivim] LO BDU Peasch

[Simon Montagu]

On 2/18/07, Galsaba at aol.com <Galsaba at aol.com> wrote:
> I know that Pesach will not fall in BDU, but I dont know if this
> automaticlly happens as a result of not havig Rosh Hashana on Sunday, Wed,
> Friday.
> Is at a result? or needs to be taken seperaltly?

(replying to Avodah)

Short answer: It's a result.

Long answer: there's no variation in the number of months from Nisan
to Tishrei, nor in the number of days in each month, so the number of
days from Pesach to RH is:
16  (15 Nisan - 1 Iyyar)
29  (1 Iyyar - 1 Sivan)
30  (1 Sivan - 1 Tammuz)
29  (1 Tammuz - 1 Av)
30  (1 Av - 1 Ellul)
29  (1 Ellul - 1 Tishrei)
===
163 days, which is 23 weeks and 2 days. In other words, the day of the
week of Pesach is always 2 days before the day of the week of RH, and
two days before Sunday, Wednesday and Friday gives Friday, Monday and
Wednesday.