Yom Kippur Katan
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Yom Kippur Katan

Yom Kippur Katan ( translation from Hebrew: "Minor Day of Atonement"), is a practice observed by some Jews on the day preceding each Rosh Chodesh. The observance consists of fasting and supplication, but is much less rigorous than that of Yom Kippur proper.


The custom is of comparatively recent origin and is not mentioned in the Shulchan Aruch. It appears to have been inaugurated in the sixteenth century at Safed by the kabbalist Moses Cordovero,[1] who called the fast Yom Kippur ?a?an; and it was included by Isaac Luria in his Seder ha-Tefillah. R. Isaiah Horowitz refers to it by that name, and says it should be observed by fasting and repentance: "Following the custom of the very pious, one must repent of his ways and make restitutions both in money and in personal acts, in order that he may enter the new month as pure as a new-born infant".[2] When Rosh ?odesh occurs on a Sabbath or Sunday, Yom Kippur ?a?an is observed on the preceding Thursday.

The custom has roots in scripture (Numbers 28;15) where a Korban Hatat is sacrificed for Rosh Hodesh, indicating judgement and atonement is provided by God on that day. Therefore the idea of fasting would seem obvious. However, fasting is prohibited on Rosh Hodesh, so the fast is observed on the day prior to Rosh Hodesh.


The fasting is not obligatory, and only the very pious observe that act of self-denial.

The liturgy of the day, which consists of selichot, is recited at the Mincha prayer in the afternoon. Tallit and tefillin are adjusted, and if there are among the congregation ten persons who have fasted, they read from the scroll Va-Yechal (Ex. 32:11 et seq.). The selichot are taken partly from the collection used on the general fast-days and Yom Kippur, with the Viddui ha-Gadol (the great confession of sin by Rabbenu Nissim) and Ashamnu, and also a beautiful poem written for the occasion by Leon of Modena and beginning with Yom zeh. Some congregations add Avinu Malkenu. The fast ends with the Mincha prayer. For the text see Baer, 'Abodat Yisrael, pp. 317-319; Emden's Siddur Bet Ya'a?ob, ed. Warsaw, pp. 212a-216b.

Yom Kippur Katan is not observed on the day before Rosh Hashanah. It is not observed prior to Rosh Chodesh Cheshvan, because Yom Kippur has just passed. It is not observed before Rosh Chodesh Tevet, because that day is Hanukkah. It is not observed prior to Rosh Chodesh Iyar, because one may not fast during Nisan.

If the 29th of the month falls on a Friday or a Sabbath, Yom Kippur Katan is observed on the Thursday prior.

See also

  • Isru chag refers to the day after each of the Three Pilgrimage Festivals.
  • Chol HaMoed, the intermediate days of Passover and Sukkot.
  • Mimouna, a traditional North African Jewish celebration held the day after Passover.
  • Pesach Sheni, is exactly one month after 14 Nisan.
  • Purim Katan is when during a Jewish leap year Purim is celebrated during Adar II so that the 14th of Adar I is then called Purim Katan.
  • Shushan Purim falls on Adar 15 and is the day on which Jews in Jerusalem celebrate Purim.
  • Yom tov sheni shel galuyot refers to the observance of an extra day of Jewish holidays outside of the land of Israel.


  1. ^ Da Silva, "Peri ?adash," Rosh ?odesh, § 417
  2. ^ Shelah, ed. Amsterdam, 1698, pp. 120b, 140a, 179a
  •  This article incorporates text from a publication now in the public domainJoseph Jacobs and Judah David Eisenstein (1901-1906). "Yom Kippur Katan". In Singer, Isidore; et al. (eds.). The Jewish Encyclopedia. New York: Funk & Wagnalls.

Further reading

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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