Nisan 2025 begins in the evening preceding March 23

Nisan (or Nissan), the first month on Jewish calendar (according to the Torah), coincides with March-April on the civil calendar. The Torah calls it chodesh ha-aviv—the month of spring, as it marks the beginning of the spring months.

On the first day of Nisan in the year 2448 from creation (1313 BCE), two weeks before the Exodus, G‑d showed Moses the crescent new moon, instructing him regarding the setting of the Jewish calendar and the mitzvah of sanctifying the new month. “This month shall be for you the head of months, the first of the months of the year” (Exodus 12:2). This ushered in the first Jewish month and commenced the lunar calendar that Jews have been following ever since. It was the first mitzvah (“commandment”) given to the newly born nation of Israel, even before the exodus from Egypt.

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