Our Lady on Saturday is not celebrated in the Mass or Office
Mass of the 2nd Sunday of Advent; no Gloria; omit Alleluia with following verse; no Credo; common preface
Matins: Invitatorium Regem venturum Dominum; Hymn Verbum supernum; ferial psalms and antiphons; no Te Deum
Lauds: Ferial psalms and antiphons of the 2nd scheme; Hymn En clara vox
Hours: Ferial psalms with antiphons of the 2nd week of Advent
I Vespers: Of III Sunday of Advent, Proper antiphons, Saturday psalms, remainder proper.
Compline: Of Saturday. Antiphon of the BVM is Alma Redemptoris Mater