The Triduum is the three-day celebration of the death and resurrection of Christ - Holy Thursday, Good Friday and Easter Vigil/Easter Sunday. "Holy Thursday- Celebrated by a reenactment of the last supper at an evening mass. There is also a washing of the feet ceremony to remind us that Christ washed the feet of his disciples.
Good Friday- Celebrated by stations of the cross at 3pm when it is believed Christ died. No transubstantiation is allowed to be performed today, and it is a day of fasting.
Holy Saturday- No Transubstantiation are to be performed until sundown. At sundown an Easter Vigil celebration is said. This mass is twice as long as usual. This is the only night of the liturgical year that new members can be confirmed to the church without the bishop present. The mass also includes the lighting of the new Easter candle, the creation story and much more."