March 17 – Feria Tertia – St. Patrick of Ireland, d.
In Ireland this Feast is a double of the first class
Psalms and Antiphons from the Psalter at all Hours.
Matins: Invitatory & Hymn from Common 7 (though Common 10 could also be used). Matins is of one Nocturn according to Rule 2 (p. xli-xlii). Lesson i is from Common 7 with its respond; Lesson ii is the Legend of St. Patrick w/ the third respond from the second Nocturn of Common 7, Lesson iii is from the Incipit and Homily for the Feria (p. C257-8). Te Deum.
Lauds: Psalms and Antiphons from Psalter all else from Common 7, except Collect from E116 w/commemoration of Feria (Ant. Ben. from C258, V/R p. A22, Collect C258 (We beseech thee). Preces & Suffrage are not said.
Hours: from Chapter of the feast. At Prime & Compline no Preces.
Vespers: from Chapter of the Feast of St. Cyril, using Common 8, Collect E116 w/commemoration of St. Patrick using Table 7c & Feria (Ant. on Magn. C238, V/R A42, Collect of Vespers c238 (Have mercy).