The Easter Vigil, also known as the Paschal Vigil, the Great Vigil of Easter, or Holy Saturday at the Easter Vigil on the Holy Night of Easter, is a liturgy held in traditional Christian churches as the first official celebration of the Resurrection of Jesus. Historically, it is during this liturgy that people are baptized and that adult catechumens are received into full communion with the Church. It is held in the hours of darkness between sunset on Holy Saturday and sunrise on Easter Day – most commonly in the evening of Holy Saturday or midnight – and is the first celebration of Easter, days traditionally being considered to begin at sunset.
Among liturgical Western Christian churches including the Roman Catholic Church, the Lutheran Churches and the Anglican Communion, the Easter Vigil is the most important liturgy of public worship and Mass of the liturgical year, marked by the first use since the beginning of Lent of the exclamatory "Alleluia", a distinctive feature of the Easter season.
