LAUDIS CANTICUM. Apostolic Constitution of Pope Paul VI by which the Divine Office, revised according to the decree of the Second Vatican Council, is officially promulgated. This document gives a historical synthesis of the Divine Office from early Christian times, recalls the norms set down by the Second Vatican Council, and then declares that the new Liturgy of the Hours (Liturgia Horarum) is the only officially approved form of the Divine Office, confirmed by the Holy See for the universal Church in the Latin Rite (November 1, 1970).