Roman Catholics will commemorate Pentecost Sunday on May 19, marking the end of the Easter season.

Also known as the Feast of the Holy Spirit, Pentecost Sunday is traditionally observed 50 days after the resurrection of Christ on Easter Sunday.
The feast commemorates the descent of the Holy Spirit upon the disciples of Jesus Christ as He had promised.
In Holy Masses on Sunday, Church rites will include the recitation of special prayers and the Litany to the Holy Spirit, prayers for the gifts of the Holy Spirit, and the Act of Consecration to the Holy Spirit.
Red vestments will be worn by the clergy “to symbolize God’s burning love for mankind and the supreme power of the Holy Ghost.”
Mass readings will focus on the events of Pentecost, which took place in a house in Jerusalem, where the Last Supper was held. Witnessed by the Blessed Mother and other loyal followers of Jesus, He blessed His apostles and bestowed on them the gift of the Holy Spirit. He said, “Receive the Holy Spirit, whose sins you forgive are forgiven, and whose sins you retain are retained
Meanwhile, commemorative masses will be celebrated on May 19, Sunday, at the Our Lady of Pentecost Parish in Loyola Heights, Quezon City. This year marks the 25th Jubilee anniversary of the parish which was founded on May 23, 1999 by the late Jaime Cardinal Sin.
Novena masses were held from May 10 to 18. The fiesta procession will be held on Saturday, May 18, at 7:30 p.m.