Q. On the Jewish calendar, do all months of the year have the same amount of days, therefore making the first of the month fall on the same day of the week every month?
A. In most years the Jewish year is 354 days long making the average month 29.5 days long. Since you can’t begin a new day in the middle of another one, the months vary in length. About every third year the Jews add a short 13th month into the calendar in the early spring to correct the cycle of years.