June
- 1 June:
- 2 June: Marcellinus, Peter and Erasmus martyrs.
- 3 June:
- 4 June:
- 5 June:
- 6 June:
- 7 June:
- 8 June:
- 9 June: Primus and Felician martyrs.
- 10 June:
- 11 June: Barnabas Apostle, Double.
- 12 June: Basilides, Cyrinus, Nabor and Nazarius martyrs.
- 13 June:
- 14 June: Basil bishop and confessor, Double.
- 15 June: Vitus, Modestus, and Crescentia martyrs.
- 16 June:
- 17 June:
- 18 June: Mark and Marcellianus Brothers, martyrs.
- 19 June: Gervase and Protase martyrs.
- 20 June: Silverius pope and martyr.
- 21 June:
- 22 June: Paulinus bishop and confessor
- 23 June: Vigil.
- 24 June: Nativity of St. John the Baptist, Double.
- 25 June: Of the octave of the Nativity of St. John the Baptist.
- 26 June: John and Paul martyrs, Semidouble, with commemoration of the octave of the Nativity of St. John the Baptist.
- 27 June: Of the octave of the Nativity of St. John the Baptist.
- 28 June: Leo II pope and confessor, Semidouble, with commemoration of the Octave and of the Vigil.
- 29 June: Peter and Paul Apostles, Double.
- 30 June: Commemoration of St Paul Apostle, Double, with commemoration of the Octave of St John.
Read more about this topic: Tridentine Calendar, The Tridentine Calendar Itself