Semidouble
Within the Octave of the Nativity
Color: White
Mass
After Terce, 2nd. Orations of the BVM, 3rd. Orations "Contra Persecutores" or "Pro Papa".
Gloria. Credo.
Preface: Nativity
Proper Communicantes/Hanc Igitur: Proper Communicantes of the Nativity
Office
Doxology: Incarnation
Hymn Tone: Christmas
Vespers: First Vespers of the following Sunday (Antiphons & Psalms of Christmas), Commemorations of the Octave and of St. Sylvester