Reference for Rosh Hashanah 12:15

בעי ר' זירא אשה מה היא בבל תאחר מי אמרינן הא לא מיחייבא בראיה או דלמא הא איתה בשמחה

It is the 'Others', as it has been taught: Others say that between Pentecost and Pentecost, between New Year and New Year there is always an interval of four days [of the week],<span class="x" onmousemove="('comment',' They held that the months are full and defective in strict rotation, and the twelvemonth consequently has 354 days, which is four days over 50 weeks. On this view, Pentecost must always be on the sixth of Sivan.');">¹⁹</span> or, in a leap year, five.<span class="x" onmousemove="('comment',' It being assumed that the intercalary month consists always of twenty-nine days. i.e., four weeks and a day.');">²⁰</span>

Explore reference for Rosh Hashanah 12:15. In-depth commentary and analysis from classical Jewish sources.