Basic chronology in the biblical period
From very early times, the Babylonian calendar was in wide use by the countries of the Near East. The structure, which was also used by the Israelites, was based on lunar months with … See more

Outside of Rabbinic Judaism, evidence shows a diversity of practice.
Karaite calendar
Karaites use the lunar month and the solar year, but the Karaite calendar differs from the current Rabbinic calendar in a number of ways. The … See more

Given the importance in Jewish ritual of establishing the accurate timing of monthly and annual times, some futurist writers and researchers have … See more

Early Zionist pioneers were impressed by the fact that the calendar preserved by Jews over many centuries in far-flung diasporas, as a matter of religious ritual, was geared to the … See more

Days
Based on the classic rabbinic interpretation of Genesis 1:5 ("There was evening and there was morning, one day"), a day in the … See more

Synodic month – the molad interval
A "new moon" (astronomically called a lunar conjunction and, in Hebrew, a molad) is the moment at … See more

While imprisoned in Auschwitz, Jews made every effort to observe Jewish tradition in the camps, despite the monumental dangers in doing so. The Hebrew calendar, which is a tradition with great importance to Jewish practice and rituals was particularly … See more