Liturgy Brisbane calls it "Holy Saturday."
According to the Catholic Encyclopedia, it is a day of both joy and sadness, and "in the early Church this was the only Saturday on which fasting was permitted, and the fast was one of special severity. Dating from the time of St. Irenaeus, an absolute fast from every kind of food was observed for the forty hours preceding the feast of Easter."
The names for the full week:
- Passion Sunday (Palm Sunday)
- Monday of Holy Week
- Tuesday of Holy Week
- Wednesday of Holy Week
- Thursday of Holy Week (also called Maundy Thursday in reference to Jesus' command to wash each other's feet)
- Good Friday
- Holy Saturday
The days following Easter Sunday are called Easter Monday, Easter Tuesday and so on through to Easter Saturday, which is 6 days after Easter Sunday
The Sundays of the Easter Season are named the Second Sunday of Easter, etc, not after Easter as in the past, because they fall with in the 50-day Season of Easter.