 
 December 26 - Eastern Orthodox liturgical calendar - December 28
All fixed commemorations below are observed on January 9 by Eastern Orthodox Churches on the Old Calendar. [note 1]
For December 27th, Orthodox Churches on the Old Calendar commemorate the Saints listed on December 14 .

March 30 - Eastern Orthodox liturgical calendar - April 1

May 13 - Eastern Orthodox Church calendar - May 15

January 16 - Eastern Orthodox liturgical calendar - January 18

January 27 - Eastern Orthodox liturgical calendar - January 29

February 16 - Eastern Orthodox liturgical calendar - February 18

December 16 - Eastern Orthodox liturgical calendar - December 18

December 17 - Eastern Orthodox liturgical calendar - December 19

December 8 - Eastern Orthodox liturgical calendar - December 10

December 1 - Eastern Orthodox liturgical calendar - December 3

December 4 - Eastern Orthodox liturgical calendar - December 6

December 11 - Eastern Orthodox liturgical calendar - December 13

December 12 - Eastern Orthodox liturgical calendar - December 14

December 14 - Eastern Orthodox liturgical calendar - December 16

December 20 - Eastern Orthodox liturgical calendar - December 22

December 25 – Eastern Orthodox liturgical calendar – December 27

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 20 – Eastern Orthodox liturgical calendar – March 22

March 13 - Eastern Orthodox liturgical calendar - March 15
Greek Sources
Russian Sources