Mid-Pentecost or Midfeast, also Meso-Pentecost (from Greek: Μεσοπεντηκοστή); Russian: Преполове́ние Пятидеся́тницы is a feast day which occurs during the Paschal season in the Eastern Orthodox Church and those Eastern Catholic Churches which follow the Byzantine Rite.Mid-Pentecost celebrates the midpoint between the Feasts of Pascha (Easter) and Pentecost. Specifically, it falls on the 25th day of Pascha.