The Catholic liturgical calendar organizes the Church year around the life, death, and resurrection of Jesus Christ. The main seasons are: (1) Advent (4 weeks before Christmas) — preparation for Christ's coming, color: purple. (2) Christmas (December 25 to Baptism of the Lord) — celebrating Christ's birth, color: white/gold. (3) Ordinary Time I (after Christmas until Lent) — growth in discipleship, color: green. (4) Lent (Ash Wednesday to Holy Thursday) — penance and preparation, color: purple. (5) Triduum (Holy Thursday evening to Easter Sunday) — the most sacred three days. (6) Easter (50 days from Easter to Pentecost) — celebrating the Resurrection, color: white/gold. (7) Ordinary Time II (after Pentecost to Advent) — continued discipleship, color: green.