Today is the fifth day, Saturday, within the Octave of the Epiphany. The rank of day is semi-double.
The Office is as on the 7th January and on the feast. Mattins has three nocturns and nine lessons. The psalmody at mattins and the hours is festal. At Lauds the antiphon on the Benedictus is proper to the 10th January.
At Mass the Gloria is sung, the second collect Deus, qui salutis, the third for the Church Ecclesiae, or for the pope. The Credo is sung and the preface and communicantes are proper.
Vespers are first Vespers of the following feast of the Holy Family with commemoration of the Octave, the Sunday within the Octave and St. Hyginus Pope & Martyr. A proper Doxology in honour of the feast, Jesu, tibi obediens, is sung at the hymns of all the Hours (except mattins).
In the 'liturigcal books of 1962' the day is fourth class celebration of the BVM on Saturday. Mattins has one nocturn and three lessons. The proper antiphon at the Benedictus is replaced by the Office of the BVM. Psalmody is ferial at mattins and the Hours. Mass is of the BVM on Saturday. Vespers are first Vespers of the feast of the Holy Family without any commemorations. The Doxology in honour of the feast is not sung at the Little Hours.