Days of the Lord The Liturgical Year is an excellent guide to the riches of the Church's liturgy, and a welcome companion to the Sacramentary, the Liturgy of the Hours, and the Lectionary. Volume 1: Advent, Christmas, Epiphany. Volume 2: Lent Volume 2: Easter Triduum/Easter Season Volume 4: Ordinary Time Year A, Volume 5: Ordinary Time Year B, Volume 6: Ordinary Time Year C and Volume 7: Solemnities and Feasts.