December 27 - Eastern Orthodox liturgical calendar - December 29
All fixed commemorations below are observed on January 10 by Orthodox Churches on Old Calendar. [note 1]
For December 28th, Orthodox Churches on the Old Calendar commemorate the Saints listed on December 15 .
May 26 - Eastern Orthodox Church calendar - May 28
June 15 - Eastern Orthodox Church calendar - June 17
January 3 - Eastern Orthodox liturgical calendar - January 5
January 7 - Eastern Orthodox liturgical calendar - January 9
January 28 - Eastern Orthodox liturgical calendar - January 30
December 16 - Eastern Orthodox liturgical calendar - December 18
December 17 - Eastern Orthodox liturgical calendar - December 19
December 2 – Eastern Orthodox liturgical calendar – December 4
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 22 - Eastern Orthodox liturgical calendar - December 24
December 26 - Eastern Orthodox liturgical calendar - December 28
December 28 - Eastern Orthodox liturgical calendar - December 30
December 29 - Eastern Orthodox liturgical calendar - December 31
December 30 - Eastern Orthodox liturgical calendar - January 1
Greek Sources
Russian Sources