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Zmanim

Zmanim (Hebrew: זְמַנִּים, literally means "times", singular zman) are specific times of the day mentioned in Jewish law.

For other uses, see Zman (disambiguation).

These times appear in various contexts: Shabbat and Jewish holidays begin and end at specific times in the evening, while some rituals must be performed during the day or the night, or during specific hours of the day or night.

According to the period between daybreak and nightfall is divided into 12 hours. Usually this time is computed using daybreak as 72 minutes before sunrise (or more accurately, when the sun is 16.1 degrees below the horizon, as it is in Jerusalem 72 minutes before sunrise on the equinox), and nightfall as 72 minutes after sunset. However, the common practice in Jerusalem (following the Tucazinsky luach) is to compute it using 20 degrees (90 minutes at the equinox).

Magen Avraham

According to the period between sunrise and sunset is divided into 12 hours.[1]

Vilna Gaon

Times[edit]

Daybreak[edit]

Daybreak (עֲלוֹת הַשַּׁחַר, Alot Hashachar) refers to when the first rays of light are visible in the morning.[12]

Jewish law in the polar regions

Canonical hours

Salat times

Relative hour (Jewish law)