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The Advent Season:

• The First Sunday of Advent (DOMINICA I ADVENTUS)
• The Second Sunday of Advent (DOMINICA II ADVENTUS)
• The Third Sunday of Advent - GAUDETE (DOMINICA III ADVENTUS)
• December 17 (Die 17 decembris)
• December 18 (Die 18 decembris)
• December 19 (Die 19 decembris)
• December 20 (Die 20 decembris)
• December 21 (Die 21 decembris)
• December 22 (Die 22 decembris)
• December 23 (Die 23 decembris)
• December 24 (Die 24 decembris)
• The Fourth Sunday of Advent (DOMINICA IV ADVENTUS)
  
  
• December 8 - The Immaculate Conception of the Blessed Virgin Mary (IN CONCEPTIONE IMMACULATA B. MARIÆ VIRG.)
  
  

The Christmastide:

• December 25 - Christmas Day (IN NATIVITATE DOMINI)
• December 26 - St. Stephen, the first martyr (S. STEPHANI, PROTOMARTYRIS)
• December 27 - St. John, Apostle and Evangelist (S. IOANNIS, APOSTOLI ET EVANGELISTÆ)
• December 28 - The Holy Innocents, martyrs (SS. INNOCENTIUM, MARTYRUM)
• December 29 - The Fifth Day in the Octave of Christmas (Die 29 decembris)
• December 30 - The Sixth Day in the Octave of Christmas (Die 29 decembris)
• December 31 - The Seventh Day in the Octave of Christmas (Die 29 decembris)
• Sunday within the Octave of Christmas - The Holy Family (SANCTÆ FAMILIÆ IESU, MARIÆ ET IOSEPH)
• January 1 - Mary, Mother of God (SOLLEMNITAS SANCTÆ DEI GENETRICIS MARIÆ)
• January 6 - Epiphany of the Lord (IN EPIPHANIA DOMINI)
• Sunday after January 6 - Baptism of the Lord (IN BAPTISMATE DOMINI)

The Ordinary Time:

• Second Sunday in Ordinary Time (Dominica II per annum)
• Third Sunday in Ordinary Time (Dominica III per annum)
• Fourth Sunday in Ordinary Time (Dominica IV per annum)
• Fifth Sunday in Ordinary Time (Dominica V per annum)
• Sixth Sunday in Ordinary Time (Dominica VI per annum)
• Seventh Sunday in Ordinary Time (Dominica VII per annum)
• Eighth Sunday in Ordinary Time (Dominica VIII per annum)
  
  
• January 25 - Conversion of St. Paul (IN CONVERSIONE S. PAULI, APOSTOLI)
• February 2 - Presentation of the Lord (IN PRÆSENTATIONE DOMINI)
• February 22 - Chair of St. Peter (CATHEDRÆ S. PETRI, APOSTOLI)

The Lent:

• Ash Wednesday (DIE CINERUM)
• First Sunday in Lent (Dominica I Quadragesimæ)
• Second Sunday in Lent (Dominica II Quadragesimæ)
• Third Sunday in Lent (Dominica III Quadragesimæ)
• Fourth Sunday in Lent - LÆTARE (Dominica IV Quadragesimæ)
• Fifth Sunday in Lent (Dominica V Quadragesimæ)
  
  
• March 19 - Saint Joseph, husband of the Blessed Virgin Mary (S. IOSEPH, SPONSI B. MARIÆ V.)
• March 25 - The Annunciation of the Lord (IN ANNUNTIATIONE DOMINI)

The Holy Week:

• Palm Sunday (DOMINICA IN PALMIS)
• Holy Monday (Feria secunda hebdomadæ sanctæ)
• Holy Tuesday (Feria tertia hebdomadæ sanctæ)
• Holy Wednesday (Feria quarta hebdomadæ sanctæ)
• Maundy Thursday (IN CENA DOMINI)
• Good Friday (FERIA DE PASSIONE ET MORTE DOMINI)
• Holy Saturday (SABBATO SANCTO)

The Easter:

• Easter Sunday (DOMINICA RESURRECTIONIS)
• The Second Day in the Octave of Easter (Feria secunda infra Octavam Paschæ)
• The Third Day in the Octave of Easter (Feria tertia infra Octavam Paschæ)
• The Fourth Day in the Octave of Easter (Feria quarta infra Octavam Paschæ)
• The Fifth Day in the Octave of Easter (Feria quinta infra Octavam Paschæ)
• The Sixth Day in the Octave of Easter (Feria sexta infra Octavam Paschæ)
• The Seventh Day in the Octave of Easter (Sabbato infra Octavam Paschæ)
• Second Sunday of Easter (DOMINICA II PASCHÆ - DOMINICA IN ALBIS)
• Third Sunday of Easter (DOMINICA III PASCHÆ)
• Fourth Sunday of Easter (DOMINICA IV PASCHÆ)
• Fifth Sunday of Easter (DOMINICA V PASCHÆ)
• Sixth Sunday of Easter (DOMINICA VI PASCHÆ)
• 40 days after Easter Sunday - The Ascension of the Lord (IN ASCENSIONE DOMINI)
• Seventh Sunday of Easter (DOMINICA VII PASCHÆ)
• 10 days after the Ascension - Pentecost (DOMINICA PENTECOSTES)
  
  
• April 25 - St. Mark, Evangelist (S. MARCI, EVANGELISTÆ)
• May 3 - Sts. Philip and James, Apostles (Ss. PHILIPPI ET IACOBI, APOSTOLORUM)
• May 14 - St. Matthias, Apostle (S. MATTHIÆ, APOSTOLI)
• May 31 - The Visitation of the Blessed Virgin Mary (IN VISITATIONE B. MARIÆ VIRG.)

The Ordinary Time:

• First Sunday after Pentecost - The Most Holy Trinity (SS.MÆ TRINITATIS)
• Thursday 10 days after Pentecost - Corpus Christi (SS.MI CORPORIS ET SANGUINIS CHRISTI)
• Friday after second Sunday after Pentecost - The Most Sacred Heart of Jesus (SACRATISSIMI CORDIS IESU)
• Ninth Sunday in Ordinary Time (Dominica IX per annum)
• Tenth Sunday in Ordinary Time (Dominica X per annum)
• Eleventh Sunday in Ordinary Time (Dominica XI per annum)
• Twelfth Sunday in Ordinary Time (Dominica XII per annum)
• Thirteenth Sunday in Ordinary Time (Dominica XII per annum)
• Fourteenth Sunday in Ordinary Time (Dominica XIV per annum)
• Fifteenth Sunday in Ordinary Time (Dominica XV per annum)
• Sixteenth Sunday in Ordinary Time (Dominica XVI per annum)
• Seventeenth Sunday in Ordinary Time (Dominica XVII per annum)
• Eighteenth Sunday in Ordinary Time (Dominica XVII per annum)
• Nineteenth Sunday in Ordinary Time (Dominica XIX per annum)
• Twentieth Sunday in Ordinary Time (Dominica XX per annum)
• Twenty-first Sunday in Ordinary Time (Dominica XXI per annum)
• Twenty-second Sunday in Ordinary Time (Dominica XXII per annum)
• Twenty-third Sunday in Ordinary Time (Dominica XXIII per annum)
• Twenty-fourth Sunday in Ordinary Time (Dominica XXIV per annum)
• Twenty-fifth Sunday in Ordinary Time (Dominica XXV per annum)
• Twenty-sixth Sunday in Ordinary Time (Dominica XXVI per annum)
• Twenty-seventh Sunday in Ordinary Time (Dominica XXVII per annum)
• Twenty-eighth Sunday in Ordinary Time (Dominica XXVIII per annum)
• Twenty-ninth Sunday in Ordinary Time (Dominica XXIX per annum)
• Thirtieth Sunday in Ordinary Time (Dominica XXX per annum)
• Thirty-first Sunday in Ordinary Time (Dominica XXXI per annum)
• Thirty-second Sunday in Ordinary Time (Dominica XXXII per annum)
• Thirty-third Sunday in Ordinary Time (Dominica XXXIII per annum)
• Thirty-fourth Sunday in Ordinary Time - Christ the King (IESU CHRISTI, UNIVERSORUM REGIS)
  
  
• June 24 - The Birthday of St. John the Baptist (IN NATIVITATE S. IOANNIS BAPTISTÆ)
• June 29 - Sts. Peter and Paul, Apostles (SS. PETRI ET PAULI, APOSTOLORUM)
• July 3 - St. Thomas, Apostle (S. THOMÆ, APOSTOLI)
• July 25 - St. James, Apostle (S. IACOBI, APOSTOLI)
• August 6 - The Transfiguration of the Lord (IN TRANSFIGURATIONE DOMINI)
• August 10 - St. Laurence, deacon, martyr (S. LAURENTII, DIACONI ET MART.)
• August 15 - The Assumption of the Blessed Virgin Mary (IN ASSUMPTIONE B. MARIÆ VIRG.)
• August 24 - St. Bartholomew, Apostle (S. BARTHOLOMÆI, APOSTOLI)
• September 8 - The Birthday of the Blessed Virgin Mary (IN NATIVITATE B. MARIÆ VIRG.)
• September 14 - The Exaltation of the Holy Cross (IN EXALTATIONE SANCTÆ CRUCIS)
• September 21 - St. Matthew, Apostle (S. MATTHÆI, APOSTOLI ET EVANGELISTÆ)
• September 29 - Sts. Michael, Gabriel and Raphael, Archangels (SS. MICHAELIS, GABRIELIS ET RAPHAELIS, ARCHANGELORUM)
• October 18 - St. Luke, Evangelist (S. LUCÆ, EVANGELISTÆ)
• October 28 - Sts. Simon and Jude, Apostles (SS. SIMONIS ET IUDÆ, APOSTOLORUM)
• November 1 - All Saints (OMNIUM SANCTORUM)
• November 2 - All Souls (IN COMMEMORATIONE OMNIUM FIDELIUM DEFUNCTORUM)
• November 9 - Dedication of the Lateran Basilica (IN DEDICATIONE BASILICÆ LATERANENSIS)
• November 30 - St. Andrew, Apostle (S. ANDREÆ, APOSTOLI)