In the 1962 Breviarium S.O.P., the ferial days of Christmastide (January 2-5) contained no feast days of saints or blesseds, so the ferial day was prayed on each of those days, unless one of them fell on Sunday. The liturgical rank of these ferial days was IV Class. Of course, in previous editions of the Breiary, January 2 was the feast of Blessed Stephana Quinzani and January 3 was the feast of St. (then blessed) Zedislavae Berkianae. On my calendar, I follow Fr. Augustine Thompson rule of including the Dominican saints who were merely blessed in the older calendar.
So I add St. Zedislavae back into the calendar, even though she was removed in the 1962 revision.
Preces and genuflections are omitted. Except at Compline, antiphons and psalms at all hours and the versicle of the Nocturn are taken from the current weekday as in the Psalter.The Collect prayer, which is said on all days, is:O God, who, through the fruitful virginity of the blessed Mary, offered to all men the reward of eternal salvation, grant, we beseech you, that we may experience her intercession through whom we were found worthy to receive among us the author of life, our Lord Jesus Christ, you Son, who lives and reigns with you.
Inv. To us the Christ has been born; * come, let us adore.
Hymn: O Christ, the Father's only son…(Christe, Redemptor omnium…)The lessons are from current scripture with their own responsories. Te Deum is not said.