Sundays
Sundays of the First Class:
The Sundays of Advent.
The Sundays of Lent.
The Sundays of Passiontide (Passion Sunday and Palm Sunday).
Easter Sunday.
Low Sunday.
The Sundays of Pentecost.
Sundays of the Second Class:
All the Sundays of the year not listed above.
Ferias
Ferias of the First Class:
Ash Wednesday.
The ferias of Holy Week.
Ferias of the Second Class:
Ferias of Advent from December 17th to December 23rd.
Ember Days of Advent, Lent, and in the month of September.
Ferias of the Third Class:
Ferias of Advent until December 16th inclusive, except Ember Days.
Ferias of Lent and Passiontide not listed above.
Ferias of the Fourth Class:
All other ferias of the year not listed above.
Vigils
Vigils of the First Class:
The Vigil of Christmas.
The Vigil of Pentecost.
Vigils of the Second Class:
The Vigil of Ascension Thursday.
The Vigil of the Assumption of the Blessed Virgin Mary.
The Vigil of the Nativity of St. John the Baptist.
The Vigil of Ss. Peter and Paul.
Vigils of the Third Class:
The Vigil of S. Lawrence, Martyr.
Octaves
Octaves of the First Class:
The Octave of Easter.
The Octave of Pentecost.
Octaves of the Second Class:
The Octave of Christmas.
Feasts of the First Class
On the Universal Kalendar of the Church:
Christmas.
The Epiphany of Our Lord.
Holy Thursday.
Ascension Thursday.
Pentecost.
Trinity Sunday.
Corpus Christi.
The Feast of the Sacred Heart.
The Feast of the Precious Blood.
The Feast of Christ the King.
The Feast of the Immaculate Conception of the Blessed Virgin Mary.
The Annunciation of the Blessed Virgin Mary.
The Feast of S. Joseph, Spouse of the Blessed Virgin Mary on March 19.
The Feast of S. Joseph the Worker on May 1.
The Dedication of St. Michael the Archangel (Michaelmas Day).
The Nativity of S. John the Baptist.
The Feast of Ss. Peter and Paul.
The Feast of All Saints
On Particular Kalendars:
The feast of the principal patron of a nation, region, ecclesiastic
or civil province, or diocese.
The anniversary of the dedication of the cathedral church.
The feast of the principal patron of the town or city.
The anniversary of the dedication of the parish church.
The titular feast the church.
The titular feast of the order or congregation.
The feast of a canonized founder of the order or congregation.
The feast of the principal patron of the order or congregation.
The feast of the principal patron of the province of religious.
Other feasts whether proper or allowed by indult, whether mobile
or fixed.
Feasts of the Second Class
On the Universal Kalendar of the Church:
The Feast of the Holy Name of Jesus.
The Feast of the Holy Family.
The Commemoration of the Baptism of Our Lord Jesus Christ.
The Feast of the Transfiguration.
The Feast of the Exaltation of the Holy Cross.
The Dedication of the Basilica of Most Holy Savior
(the Lateran basilica).
The Purification of the Blessed Virgin Mary.
The Queenship of the Blessed Virgin Mary.
The Visitation of the Blessed Virgin Mary.
The Feast of the Immaculate Heart of Mary.
The Nativity of the Blessed Virgin Mary.
The Feast of the Seven Dolors of the Blessed Virgin Mary
in the month of September.
The Feast of the Blessed Virgin Mary of the Rosary.
The Maternity of the Blessed Virgin Mary.
The Feasts of the Apostles and Evangelists, which are:
* S. Andrew (Nov. 30).
* S. Thomas (Dec. 21).
* S. John the Apostle and Evangelist (Dec. 27).
* S. Matthias (Feb. 24 or 25).
* S. Mark (Apr. 25).
* Ss. Phillip and James (May 11).
* S. James the Greater (Jul. 25).
* S. Bartholomew (Aug. 24).
* S. Matthew (Sep. 21).
* S. Luke (Oct. 18).
* Ss. Simon and Jude (Oct. 28).
The Feast of S. Stephen, Martyr.
The Feast of the Holy Innocents, Martyrs.
The Chair of S. Peter.
The Feast of S. Anne, mother of the Blessed Virgin Mary.
The Feast of S. Lawrence, Martyr.
The Feast of S. Joachim, father of the Blessed Virgin Mary.
On Particular Calendars:
The feast of the secondary patron of the nation, region, ecclesiastic or civil province, diocese, city, or town.
The feast of a beatified founder of the order or congregation.
The feast of a secondary patron of the order, congregation,
or province of religious.
Other feasts whether proper or allowed by indult, whether mobile
or fixed.
Miscellanea
Other liturgical days of the first class:
All Souls’ Day.
