September 18 (Eastern Orthodox liturgics)
Sep. 17 - Eastern Orthodox Church calendar - Sep. 19
All fixed commemorations below celebrated on Oct. 1 by Orthodox Churches on the Old Calendar
Saints
- Saint Eumenes, Bishop of Gortyna (7th century)
- Martyr Ariadne of Phrygia (2nd century)
- Martyrs Sophia and Irene of Egypt (3rd century)
- Martyr Castor of Alexandria
- Saint Arcadius, Bishop of Novgorod (1163)
- St. Romilus of Ravanica, Serbia (1375)
- Great-martyrs Prince Bidzin, Prince Elizbar, and Prince Shalva of Georgia (1661)
- Saint Hilarion of Optina Monastery (1873)
- New Hieromartyr Amphilochius (Skvortsov), bishop of Krasnoyarsk (1937)
Other Commemorations
- Repose of Blessed Irene of the Green Hill Monastery (18th century)