What is the Jewish Calendar?
The Jewish calendar, which is also referred to as the Hebrew calendar, is used for Jewish religious dates. It is unlike the Gregorian calendar, the calendar used by most of the western world, in several ways. The Jewish calendar starts at the time of creation rather than the birth of Jesus and has 12 months in its regular year, and an extra month, not just an extra day, in its leap year. Days according to the Jewish calendar start at sundown, and the new year occurs in the seventh, not first, month of the year.