April 3 - Eastern Orthodox liturgical calendar - April 5
All fixed commemorations below are observed on April 17 by Eastern Orthodox Churches on the Old Calendar. [note 1]
For April 4th, Orthodox Churches on the Old Calendar commemorate the Saints listed on March 22 .
Mar. 31 - Eastern Orthodox liturgical calendar - Apr. 2
April 2 - Eastern Orthodox liturgical calendar - April 4
April 5 — Eastern Orthodox liturgical calendar — April 7
April 7 - Eastern Orthodox liturgical calendar - April 9
April 10 - Eastern Orthodox liturgical calendar - April 12
April 11 - Eastern Orthodox liturgical calendar - April 13
April 16 - Eastern Orthodox liturgical calendar - April 18
Apr. 23 - Eastern Orthodox liturgical calendar - Apr. 25
April 24 - Eastern Orthodox liturgical calendar - April 26
April 17 - Eastern Orthodox liturgical calendar - April 19
April 18 - Eastern Orthodox liturgical calendar - April 20
April 19 - Eastern Orthodox liturgical calendar - April 21
April 20 - Eastern Orthodox liturgical calendar - April 22
May 26 - Eastern Orthodox Church calendar - May 28
January 16 - Eastern Orthodox liturgical calendar - January 18
January 20 - Eastern Orthodox liturgical calendar - January 22
January 23 - Eastern Orthodox liturgical calendar - January 25
January 24 - Eastern Orthodox liturgical calendar - January 26
April 6 - Eastern Orthodox liturgical calendar - April 8
December 3 - Eastern Orthodox liturgical calendar - December 5
Greek Sources
Russian Sources