Ο Ακάθιστος Ύμνος
Sorry, we don't yet know the date of the next celebration of The Akathist Hymn.
The feast of The Akathist Hymn is a moveable feast celebrated on different dates each year. Here are the latest known celebrations:
Fast
complete fasting day (nisteia)
The The Akathist Hymn Day is not a fasting day per se, but in 2025 the date of April 4 falls within a fasting period.