thumb|The [[Eastern Orthodox Church|Eastern Orthodox cross]]
Sep. 17 - Eastern Orthodox liturgical calendar - Sep. 19
All fixed commemorations below celebrated on October 1 by Eastern Orthodox Churches on the Old Calendar.
For September 18th, Orthodox Churches on the Old Calendar commemorate the Saints listed on September 5.
Saints
- Martyr Ariadne of Phrygia (c. 117-139)
- Martyrs Sophia and Irene, of Egypt, by the sword (3rd century) <small>(see also: August 28)</small>
- Martyr Castor of Alexandria.
- Venerable Eumenius, Bishop of Gortyna on Crete, Wonderworker (7th century)
