December 30 - Eastern Orthodox liturgical calendar - January 1
All fixed commemorations below are observed on January 13 by Eastern Orthodox Churches on the Old Calendar. [note 1]
For December 31st, Orthodox Churches on the Old Calendar commemorate the Saints listed on December 18 .
December 16 - Eastern Orthodox liturgical calendar - December 18
December 17 - Eastern Orthodox liturgical calendar - December 19
December 21 - Eastern Orthodox liturgical calendar - December 23
December 1 - Eastern Orthodox liturgical calendar - December 3
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 9 - Eastern Orthodox liturgical calendar - December 11
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 23 - Eastern Orthodox liturgical calendar - December 25
December 25 – Eastern Orthodox liturgical calendar – December 27
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