Lent in the Christian tradition, is the period of the liturgical year from Ash Wednesday to Easter.
Lent is a time of sacrifice for Jesus. The traditional purpose of Lent is the preparation of the believer —
through prayer, repentance, almsgiving and self-denial — for the annual commemoration during Holy Week of the Death and Resurrection of Jesus, which recalls the events linked to the Passion of Christ and culminates in Easter, the celebration of the Resurrection of Jesus Christ.
According to the Canonical gospels of Matthew, Mark and Luke, Jesus spent forty days fasting in the desert before the beginning of his public ministry, where he endured temptation bySatan. Thus, Lent is described as being forty days long, though different denominations calculate the forty days differently.
This practice is common to much of Christendom, being celebrated by Catholics, Lutherans, Methodists, Presbyterians, and Anglicans.
Most followers of Western Christianity observe Lent beginning on Ash Wednesday and concluding on Holy Saturday. The six Sundays in this period are not counted because each one represents a "mini-Easter," a celebration of Jesus' victory over sin and death. One notable exception is the Archdiocese of Milan which follows the Ambrosian Rite and observes Lent starting on the Sunday, six weeks before Easter.
Since the Second Vatican Council, the Catholic Church has redefined Good Friday & Holy Saturday as the first two days of the Easter Triduum rather than the last two days of Lent, but Lenten observances are maintained until the Easter Vigil.
In those churches which follow the Rite of Constantinople (e.g. Eastern Orthodox and Eastern Catholics), the forty days of Lent are counted differently; also, the date of Pascha (Easter) is calculated differently in the East than in the West. The fast begins on Clean Monday, and Sundays are included in the count; thus, counting uninterruptedly from Clean Monday, Great Lent ends on the fortieth consecutive day, which is the Friday before Palm Sunday. The days of Lazarus Saturday, Palm Sunday and Holy Week are considered a distinct period of fasting. For more detailed information about the Eastern Christian practice of Lent, see the article Great Lent.
Among Oriental Orthodox Christians, there are various local traditions regarding Lent. The Coptic, Ethiopian and Eritrean Orthodox Churches observe eight weeks of Lent, which, with both Saturdays and Sundays exempt, has forty days of fasting. Joyous Saturday and the week preceding it are counted separately from the forty day fast in accordance with the Apostolic Constitutions giving an extra eight days. The first seven days of the fast are considered by some to be an optional time of preparation. Others attribute these seven days to the fast of Holofernes who asked the Syrian Christians to fast for him after they requested his assistance to repel the invading pagan Persians.