Deacon Harold Burke Sivers on The Divine Office

The Liturgy of the Hours or Divine Office or Work of God or canonical hours, often referred to as the Breviary, is the official set of prayers "marking the hours of each day and sanctifying the day with prayer". The Office consists primarily of psalms supplemented by hymns, readings and other prayers and antiphons. Together with the Mass, it constitutes the official public prayer life of the Church. The Liturgy of the Hours also forms the basis of prayer within Christian monasticism.