The Beta Israel calendar is a lunar calendar of 12 months, each 29 or 30 days alternately. Every four years, there is a leap year which adds a full month (30 days). The calendar is a combination of the ancient calendar of Alexandrian Jewry, Book of Jubilees, Book of Enoch, Abu Shaker, and the Ge'ez calendar. The years are counted according to the counting of Kushta: "1571 to Jesus Christ, 7071 to the Gyptians, and 6642 to the Hebrews"; according to this counting, the year 5771 () in the Rabbinical Hebrew calendar is the year 7082 in this calendar.