1. Jewish calendar - Noun
2. Jewish calendar - Proper noun
(Judaism) the calendar used by the Jews; dates from 3761 BC (the assumed date of the Creation of the world); a lunar year of 354 days is adjusted to the solar year by periodic leap years
Source: WordNetAccording to Jewish tradition, the Jewish calendar is calculated based on mathematical rules handed down from God to Moses at the moment the command was given to make sure that Passover always falls in the springtime. Source: Internet
At the end of March, Jewish families in Greater Portland were just beginning to confront the new 2020 Passover reality (or year 5778, according to the Jewish calendar). Source: Internet
In fact the Jewish calendar has a multiplicity of new years for different purposes. Source: Internet
By endorsing the move to independent computations, the Council had separated the Easter computation from all dependence, positive or negative, on the Jewish calendar. Source: Internet
In 2009, for example, Nisan 15 on the Jewish calendar used by Rabbinic Judaism corresponds to April 9. On the calendars used by Karaites and Samaritans, Abib or Aviv 15 (as opposed to 'Nisan') corresponds to April 11 in 2009. Source: Internet
Months in the Jewish calendar are lunar, and originally could only be proclaimed by the Sanhedrin based on the testimony of witnesses saying they saw the new crescent moon. Source: Internet