 
 August 17 - Eastern Orthodox liturgical calendar - August 19
All fixed commemorations below are observed on August 31 by Eastern Orthodox Churches on the Old Calendar. [note 1]
For August 18, Orthodox Churches on the Old Calendar commemorate the Saints listed on August 5 .

August 2 - Eastern Orthodox liturgical calendar - August 4

August 3 - Eastern Orthodox liturgical calendar - August 5

August 4 - Eastern Orthodox liturgical calendar - August 6

August 6 - Eastern Orthodox liturgical calendar - August 8

August 7 - Eastern Orthodox liturgical calendar - August 9

August 10 - Eastern Orthodox liturgical calendar - August 12

August 11 - Eastern Orthodox liturgical calendar - August 13

August 15 - Eastern Orthodox liturgical calendar - August 17

August 16 - Eastern Orthodox liturgical calendar - August 18

August 19 – Eastern Orthodox liturgical calendar – August 21

January 19 - Eastern Orthodox liturgical calendar - January 21.

January 23 - Eastern Orthodox liturgical calendar - January 25

February 13 - Eastern Orthodox liturgical calendar - February 15

December 17 - Eastern Orthodox liturgical calendar - December 19

August 27 - Eastern Orthodox liturgical calendar - August 29

August 30 - Eastern Orthodox liturgical calendar - September 1

August 21 - Eastern Orthodox liturgical calendar - August 23

August 23 - Eastern Orthodox liturgical calendar - August 25

August 25 - Eastern Orthodox liturgical calendar - August 27

August 29 - Eastern Orthodox liturgical calendar - August 31