Yom Kippur
Prayer services

The Yom Kippur prayer service includes several unique aspects. One is the number of prayer services. Unlike a regular day which has three prayer services (Shacharit, Mincha, and Maariv), or a Shabbat or Yom Tov which has four prayer services (those three, plus Mussaf), Yom Kippur has five prayer services (those four, plus Ne'ila, the closing prayer). The prayer services also include private and public confessions of sins (Vidui), and a unique prayer dedicated to the special Yom Kippur avodah (service) of the Kohen Gadol (high priest) in the Holy Temple in Jerusalem. The Yom Kippur prayer services include additional poems (piyyutim) and petitions for forgiveness (selichot). Notable poems recited include Avinu Malkeinu, Unetanneh Tokef, Ki Anu Amecha, the Ten Martyrs, HaAderet v'HaEmunah, and Mareh Kohen. If Yom Kippur falls on Shabbat, Avinu Malkeinu is only recited during the Ne'ila prayer service.

Many married Ashkenazi Orthodox men wear a kittel, a white robe-like garment for evening prayers on Yom Kippur, also used in Eastern European communities by men on their wedding day. They also wear a tallit (prayer shawl), which is typically worn only during morning services.
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