The Sacred Paschal Triduum begins here at Thursday of the Lord's Supper (Holy Thursday) This holy liturgy includes the washing of the feet, the reception of the Holy Oils from the Chrism Mass, and the Transfer of the Most Blessed Sacrament to the Chapel for adoration until midnight.
The Triduum
Triduum — the Thursday, Friday, and Saturday before Easter — is a single liturgical prayer but one that is prayed over these three days. This is the Paschal mystery, the living story of redemption, the most solemn and powerful moment of the church year.
The Easter Vigil celebration must begin after sunset.
Easter is not a single day, but a holy season, 50 days. The Paschal candle remains in a prominent place and is lighted at all liturgies -- Jesus, the light of the world is risen! Each Sunday we are sprinkled and renew our baptismal promises.