Feast day
The memory of St Synésios is celebrated every year on May 23. Last feast was on a Thursday. Next feast in 2025 will be a Friday on 4 months 1 week.
Fast
fasting day with fish, wine and oil permitted (ichthyos)
The St Synésios Day is not a fasting day per se, but in 2024 the date of May 23 falls within a fasting period.
Take a look at the ephemeris of the day to see other saints and given names celebrated on the same day.