Sundays in Lent are not considered part of the forty (40) days of the Lenten season and therefore one is not required to uphold one’s Lenten penitence. For example, if you gave up eating desserts for Lent, you may have a piece of cake on a Sunday.
Lent is a Catholic liturgical season of penance and preparation for Easter. Lent begins on Ash Wednesday, February 13, 2013.
Good Friday is the first day of the Easter Triduum and the day that Catholics and other Christians throughout the world commemorate the crucifixion of Jesus. According to Mark 15:42 Jesus died “on the day of preparation, the day before the sabbath.” The Hebrew Sabbath is celebrated on Saturday which is preceded by Friday.
During Lent the Christian faithful are to do penance through prayer, fasting, abstinence and by exercising works of piety and charity. All Fridays through the year, and especially during Lent, are penitential days.