December 19 - Eastern Orthodox liturgical calendar - December 21
All fixed commemorations below celebrated on January 2 by Orthodox Churches on the Old Calendar. [note 1]
For December 20th, Orthodox Churches on the Old Calendar commemorate the Saints listed on December 7 .
August 4 - Eastern Orthodox liturgical calendar - August 6
January 6 - Eastern Orthodox liturgical calendar - January 8
December 17 - Eastern Orthodox liturgical calendar - December 19
December 15 - Eastern Orthodox liturgical calendar - December 17
December 21 - Eastern Orthodox liturgical calendar - December 23
December 3 - Eastern Orthodox liturgical calendar - December 5
December 4 - Eastern Orthodox liturgical calendar - December 6
December 6 - Eastern Orthodox liturgical calendar - December 8
December 10 - Eastern Orthodox liturgical calendar - December 12
December 11 - Eastern Orthodox liturgical calendar - December 13
December 14 - Eastern Orthodox liturgical calendar - December 16
December 18 - Eastern Orthodox liturgical calendar - December 20
December 20 - Eastern Orthodox liturgical calendar - December 22
December 22 - Eastern Orthodox liturgical calendar - December 24
December 26 - Eastern Orthodox liturgical calendar - December 28
December 27 - Eastern Orthodox liturgical calendar - December 29
December 28 - Eastern Orthodox liturgical calendar - December 30
December 29 - Eastern Orthodox liturgical calendar - December 31
December 30 - Eastern Orthodox liturgical calendar - January 1
March 19 - Eastern Orthodox liturgical calendar - March 21
Greek Sources
Russian Sources