Feasts
| Name | Description | Code | Feast |
|---|---|---|---|
| Silvestri | Silvester I, Pope |
14123100 | 50 |
| Simonis et Judae | Simon, Jude (Thaddeus), Apostles |
14102800 | 23 |
| Simonis et Judae, vig. | Eve of Simon and Jude |
14102700 | 20 |
| Simplicii et sociorum | Simplicius and companions, Martyrs |
14072920 | 14 |
| Sixti et sociorum | Sixtus and companions, Martyrs |
14080610 | 11 |
| Speusippi | Speusippus and Meleusippus, Martyrs |
14011720 | 5 |
| SS. Trinitatis, fer. 2 | Trinity Monday |
09012000 | 6 |
| SS. Trinitatis, fer. 4 | Trinity Wednesday |
09014000 | 3 |
| Stephani | Stephen the First Martyr |
02122600 | 255 |
| Stephani, infra oct. | In week after Stephen |
02122608 | 6 |
| Stephani, inventio | Finding of Stephen's relics (First Martyr) |
14080300 | 103 |
| Stephani, pontificis | Stephen I, Pope |
14080200 | 21 |
| Suff. Crucis TP | Memorial chants for the Holy Cross, Eastertide |
15050380 | 2 |
| Symphoriani | Symphorian, Martyr |
14082200 | 16 |
| Syri | Syrus, first bishop of Pavia |
14120900 | 5 |
| Teresiae Avilensis | Teresa of Avila, Virgin, reformer of the Carmelite Order and ascetical writer |
14101500 | 1 |
| Theodori Tiro | Theodore Tiro, Martyr |
14110910 | 15 |
| Thomae | Thomas, Apostle |
14122100 | 114 |
| Thomae Cant. | Thomas Becket, Bishop of Canterbury |
14122900 | 45 |
| Thomae de Aquino | Thomas of Aquino, Doctor of the Church |
14030700 | 5 |
| Thyrsi | Thyrsus, Martyr at Apollonia, in Frígia. In the Roman Martyrology, the feast date is December 14. |
1 | |
| Tiburtii et Susannae | Tiburtius and Susanna, Martyrs |
14081100 | 19 |
| Tiburtii, Valeriani et Maximi | Tiburtius, Valerian and Maximus, Martyrs |
14041400 | 31 |
| Timothei et Apollinaris | Timothy and Apollinaris, Martyrs |
14082300 | 7 |
| Transfiguratio Domini | Transfiguration of Jesus |
14080600 | 243 |
| undetermined | Used when the liturgical feast cannot be determined |
99999999 | 945 |
| Urbani | Urban I, Pope and Martyr |
14052510 | 21 |
| Valentini | Valentine, Martyr |
14021400 | 50 |
| Valentini et Hylarii | Valentine (priest) and Hilary (deacon), at Viterbo |
14110360 | 5 |
| Victoris Bracharensis | Victor, Martyr at Braga |
14041210 | 1 |
| Victoris et sociorum | Victor of Marseilles and companions, Martyrs |
14072110 | 5 |
| Vincentii | Vincent of Saragossa, Martyr |
14012200 | 157 |
| Vincentii, transl. in Brachara | Moving of Vincent of Saragossa's relics to Braga |
14050450 | 4 |
| Vincula Petri | Peter in Chains |
14080100 | 143 |
| Visitatio Mariae | Visitation of Mary |
14070200 | 173 |
| Vitalis et Valeriae | Vitalis and Valeria, Martyrs |
14042800 | 4 |