The Jewish calendar

Jewish festivals often seem to occur at different times of the year. This is because Jews use their own calendar called the Luach.

The Luach has 354 days a year, whilst the Gregorian calendar, which is the most common calendar in the Western world, has 365 days. So, although the Jewish festivals occur on the same day of the year according to the Luach, the date will slowly shift on the Gregorian calendar.