St. Chrysostomos (Kavouridis), Metropolitan of Florina, confessor and father of the Old Calendar movement in Greece.
St. Chrysostomos Kavouridis was born in 1870 at Madytos in Eastern Thrace and studied theology at the Theological School of Halki, graduating in 1901. He served the Church as a preacher and hierarch and was elected Metropolitan of Florina.
When the state Church of Greece adopted the New Calendar in 1924, he at first remained in office, but in 1935 he returned to the Julian calendar together with two other metropolitans and became the leading hierarch of the Genuine Orthodox Christians of Greece, enduring deposition and exile for his stand. He reposed in Athens on September 7, 1955, and was glorified by the Church of the Genuine Orthodox Christians of Greece in 2016. He is commemorated on September 7.
Feast day
On the New Calendar, Chrysostomos of Florina is commemorated on September 7. Churches on the Old (Julian) Calendar keep the feast on September 20 of the civil calendar.
Also commemorated on September 7

Evodos and Onesiphoros the Apostles
Apostle, Εύοδος και Ονησιφόρος
Holy Apostles Evodos and Onesiphoros of the Seventy.
Name days: Onesiphoros, Onisiforos, Onesiphorus, Evodos
Eupsychios of Caesarea
Martyr, Ευψύχιος
Holy Martyr Eupsychios of Caesarea in Cappadocia.
Name days: Eupsychios, Efpsychios
Daniel of Katounakia
Venerable, Δανιήλ ο Κατουνακιώτης
Venerable Daniel of Katounakia, Athonite elder and founder of the Danielaioi brotherhood.
Luke of Batheos Ryakos
Venerable, Λουκάς ο Λυκάων
Venerable Luke, abbot of the monastery of the Deep Stream in Bithynia.