The short answer is, No, he did not. A friend recently sent me a question about an old article of mine (the best way to flatter an author’s vanity!), titled “Vespers in the Morning?”, in which among other things, I explained the very ancient custom by which Mass was traditionally celebrated after either Terce, Sext or None, according to the quality of the liturgical day: after Terce on Sundays and greater feasts, after Sext on ferias and lesser feasts, and after None on vigils and fast days. Folio 1v of the Gellone Sacramentary, ca 780 AD., with the rubric before the Mass of Christmas Eve, “On the vigil of the birth of the Lord, at the ninth hour, (station) at St Mary (Major.)” In the ancient liturgical books of the Roman Rite, the year begins with Christmas Eve, and ends with Advent. (Bibliothèque nationale de France. Département des Manuscrits. Latin 12048) I should add first that this is now a strictly historical question, since this discipline no longer obtains in any form in …