In the ancient Coptic Orthodox Church of Alexandria, Pentecost is one of the seven Major "Lord's Feasts". It is celebrated at the time of ninth hour (3:00 pm) on the Sunday of Pentecost by a special three-segment prayer known as the "Office of Genuflection (Kneeling Prayer)". This feast is followed with the "Apostles Fast" which has a fixed end date on the fifth of the Coptic month of Epip currently falls on July 12, which is equivalent to June 29, due to the current 13-day Julian-Gregorian calendar offset. The fifth of Epip is the commemoration of the Martyrdom of St. Peter and Paul.