'''Matins''' (also spelled ''Mattins'', from the Latin, ''matutinae'', "morning"), also called '''Orthros''' (from Greek, meaning "morning", "dawn" or "day break"), is the longest and most complex of the [[Daily Cycle|daily cycle]] services. Matins is celebrated in the morning, unless it is celebrated as part of a [[All-Night Vigil|vigil]] in the evening.

==General structure of Sunday Matins==

While some sections of Matins follow the eight-[[tone]] cycle, others follow the eleven-part cycle of the Resurrectional Gospels (the [[eothinon|eothina]]).