Our secular culture marks the calendar year from January 1st to December 31st. In the Catholic Church, time is marked by the liturgical year. The liturgical year has special days and seasons, just like the calendar year. While the church lives within one great Sunday, these special days and seasons – Advent, Christmas, Lent, Easter, and Ordinary Time – assist the faithful in celebrating the “whole mystery of Christ, from his incarnation and birth to his ascension, the day of Pentecost, and the expectation of blessed hope and of the Lord’s return (Constitution on the Sacred Liturgy, 102). What follows are articles about the various seasons of the liturgical year and some devotional and liturgical practices that can help to mark these special times.