In addition to the liturgical services of Vespers and Matins, there are also the services of the Hours, Compline, and Nocturne. These services are chanted in monasteries but are seldom used in parish churches except perhaps during Lent and Holy Week, and on special feast days.
The services of Hours are called the First, Third, Sixth and Ninth. These “hours” conform generally to the hours of six and nine in the morning, noon, and three in the afternoon. The services consist mostly of psalms which are generally related to the events in the passion of Christ which took place at that particular hour of the day. The Third Hour also refers to the coming of the Holy Spirit to the disciples on Pentecost.
The troparia of the given day or of the feast being celebrated are added to the Hours. During the first days of Holy Week as well as on certain major feasts, the Gospel is also read during the Hours. On days when there is no Divine Liturgy, the so-called Typical Psalms which include elements of the Divine Liturgy such as the liturgical psalms, the Beatitudes, and the Creed are read after the Ninth Hour.