thumb|300px|right|Apolytikion of the Archangels Michael and Gabriel --- The Apolytikion (Greek: Ἀπολυτίκιον) or Dismissal Hymn is a troparion (hymn) said or sung at Orthodox Christian worship services. The apolytikion summarizes the feast being celebrated that day. It is chanted at Vespers, Matins and the Divine Liturgy; and it is read at each of the Little Hours. The name derives from the fact that it is chanted for the first time before the dismissal (Greek: apolysis) of Vespers. In the Orthodox Church, the liturgical day begins at sunset, so Vespers is the first service of the day.