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Calendar, The structure of the calendar

The Jewish calendar in use today is lunisolar, the years being solar and the months lunar, but it also allows for a week of seven days. Because the year exceeds 12 lunar months by about 11 days, a 13th month of 30 days is intercalated in the third, sixth, eighth, 11th, 14th, 17th, and 19th years of a 19-year cycle. For practical purposes—e.g., for reckoning the commencement of the Sabbath—the day begins

posted by MedicalStore @ 3:31 AM