December 18 - Eastern Orthodox liturgical calendar - December 20
All fixed commemorations below celebrated on January 1 by Orthodox Churches on the Old Calendar.
For December 19th, Orthodox Churches on the Old Calendar commemorate the Saints listed on December 6.
Martyr Boniface at Tarsus in Cilicia (290), and Righteous Aglae (Aglais, Aglaida) of Rome (c. 303)
Martyrs Meuris and Thea in Palestine (307)
Martyrs Elias, Probus, and Ares the Egyptians, in Cilicia (308)
Martyrs Polyeuctus at Caesarea in Cappadocia, and Timothy the Deacon at Mauretania, by fire (309)
Saints Darius, Zosimus, Paul, and Secundus, martyrs of Nicaea by Diocletian (4th century)
Martyrs Eutychios and Thessaloniki, and with them 200 men and 70 women, by the sword
Hieromartyr Capito (Capiton), Bishop of Kherson (Cherson) (4th century)
Saint Gregory (Gregentios) of Himyaritia (Gregentius of Himyar, Gregentios of Taphar, Gregory of Omirits), Missionary Archbishop of Zafar (capital of the Himyarite tribal confederacy) (552)
Saint Boniface the Merciful, Bishop of Ferentino (6th century)
Venerable George the Scribe, and Venerable Sabbas (Sava, Savva), Monks of Khakhuli Monastery (11th century)
Saint Fausta of Sirmium, the mother of Saint Anastasia of Sirmium (3rd century)
Saint Anastasius I, Pope of Rome (401)
Saint Avitus (Adjutus), Abbot of Micy near Orleans in France, an abbot renowned for the spirit of prophecy (c. 527)
Saint Gregory of Auxerre, the twelfth bishop of Auxerre in France and Confessor (c. 540)
Saint Ribert (Ribarius), seventeenth Abbot of Saint-Oyend in France, he is venerated in Franche-Comté (c. 790)