Maundy Thursday April 22 inclusive, but these dates fall on different days depending on whether the Gregorian calendar or Julian calendar is used liturgically. Eastern churches generally use the Julian calendar and celebrate this feast throughout the 21st century between April 1 and May 5 in the more commonly used Gregorian calendar. The liturgy held on the evening of Maundy Thursday initiates the Easter Triduum, the period which commemorates the passion, death, and resurrection of Jesus; this period includes Good Friday and Holy Saturday, and ends on the evening of Easter. The Mass of the Lord's Supper or service of worship is
Holy Week a proper burial. While daytime services or commemorations of the day are rare in the Western tradition, after sundown on Holy Saturday is the traditional time for Easter Vigil. In the Catholic tradition, Mass is not celebrated on what is liturgically Holy Saturday. The celebration of Easter begins after sundown on what, though still Saturday in the civil calendar, is liturgically Easter Sunday. In some Anglican churches, including the Episcopal Church in the United States, there is provision for a simple liturgy of the word with readings commemorating the burial of Christ. The tabernacle is left empty and open. The