Feast day
The memory of Sts Mamas et Basilisque le Vieillard is celebrated every year on July 29. Last feast was on a Tuesday. Next feast in 2026 will be a Wednesday on 5 months 2 weeks.
Fast
fasting day with fish, wine and oil permitted (ichthyos)
The Sts Mamas et Basilisque le Vieillard Day is not a fasting day per se, but in 2026 the date of July 29 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.