How Many Days In Jewish Calendar. Learn about the jewish calendar, its background and history, the numbering of jewish years, the months of the jewish year and the days of the jewish week. The jewish calendar is lunisolar.

It consists usually of 12 alternating lunar months of 29 and 30 days each (except for ḥeshvan and kislev, which sometimes have either 29 or 30 days), and totals 353, 354, or 355 days per year. The jewish calendar, which combines both lunar and solar aspects, has 12 months (and 13 in leap years);