Jewish Calendar
The Jewish calendar begins 3,760 years before the Christian one on the presumed date of the creation of the world. The divisions of the months are based on the lunar cycle, while the length of the year is determined by the sun. Each month begins with the new moon.
The Months of the Jewish Calendar
The months of the Jewish calendar are Tishrei, Marheshvan, Kislev, Tevet, Shevat, Adar, Nissan, Iyar, Sivan, Tammuz, Av, and Elul.
The Jewish year begins in the fall with Tishrei (September/October). According to a fixed cycle, leap months are inserted to compensate for the discrepancy between the number of days in a solar year versus a year of twelve lunar months.
Rosh Hashanah, the Jewish New Year, falls on 23 and 24 September in the year 2025, for example, beginning the Jewish year 5786.
The Gregorian Calendar
The most widespread calendar in use today, named after Pope Gregory XIII and introduced in 1582, begins with the year of Christ's birth and is based on the earth's position in relation the sun. One year consists of twelve months or 365.2425 days.
