New Feast Day for Knock
The Vatican has approved a new Feast Day of Our Lady of Knock and this is the 17th August every year. It will be listed in the new Roman Missal and has it’s own new Memorial Mass.
The reason why the 17th August was chosen is that the 21st August is already assigned to St. Pius X, the Pope of the Eucharist.
As the 21st August is the Anniversary of the Apparition of 1879, this will continue to be the local feast day in Knock and for Pilgrims visiting Knock on that day.