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Liturgical commemoration

The feast day of Saint John in the Roman Catholic Church, which calls him "Saint John, Apostle and Evangelist", and in the Anglican Communion and Lutheran Calendars, which call him "Saint John the Apostle and Evangelist", is on 27 December. In the Tridentine calendar he was commemorated also on each of the following days up to and including 3 January, the Octave of the 27 December feast. This Octave was abolished by Pope Pius XII in 1955. The liturgical color is White. John, Apostle and Evangelist is remembered in the Church of England with a Festival on 27 December. In Roman Catholic tradition he is considered patron of Turkey, Asia Minor and Turkish people.

Until 1960, another feast day which appeared in the General Roman Calendar is that of "Saint John Before the Latin Gate" on 6 May, celebrating a tradition recounted by Jerome that St John was brought to Rome during the reign of the Emperor Domitian, and was thrown in a vat of boiling oil, from which he was miraculously preserved unharmed. A church (San Giovanni a Porta Latina) dedicated to him was built near the Latin gate of Rome, the traditional site of this event.

The Eastern Orthodox Church and those Eastern Catholic Churches which follow the Byzantine Rite commemorate the "Repose of the Holy Apostle and Evangelist John the Theologian" on 26 September. On 8 May they celebrate the " Feast of the Holy Apostle and Evangelist John the Theologian", on which date Christians used to draw forth from his grave fine ashes which were believed to be effective for healing the sick. John is also commemorated on 30 June as a member of the twelve apostles. There is also a commemoration of the synaxis of the Apostle John at Diaconissa on 15 February.