The First Saturday votive Mass may be said: “one Mass of the Immaculate Heart of the Blessed Virgin Mary, on the first Saturday of each month, in churches and oratories in which special devotions are held on that day in honor of the Immaculate Heart of Mary” (Rubricæ generales, 385c).
First Saturday votive: (White) Mass of August 22; Gloria; no Credo; commemoration of the feria; Preface of the BVM with Et te in veneratione.
Ferial day: (Violet) Mass of Saturday after 2nd Sunday of Lent; no Gloria; no Credo; Preface for Lent; Prayer over the people
Matins: Invitatorium and Hymn in Tempore Quadragesimae as given in the psalter; antiphons and psalms of the feria; 3 lessons proper (homilia in Evangelium diei); no Te Deum
Lauds: Antiphons and psalms of the feria (2nd scheme); remainder in Tempore Quadragesimae as given in the psalter, except proper antiphon at Benedictus Vadam ad patrem and proper oration
Hours: Antiphons and psalms of the feria; remainder Tempore Quadragesimae as given in the psalter
I Vespers: Of the 3rd Sunday of Lent
Compline: Of the feria