A reader writes:
is it possible for Good Friday to fall on the Feast of the Annunciation?
Let’s see. The date of Easter varies every year between March 22 and April 25, and since Good Friday is two days earlier than Easter, that would put he range of Good Friday dates at March 20 to April 23. Since the Feast of the Annunciation is a fixed feast nine months before Christmas, it has a date of March 25, within the range of possible Good Friday dates.
However!
The General Norms for the Liturgical Year and the Calendar contains a holiday anti-collision system for just such events. As you can see from the Table of Liturgical Days, Good Friday as part of Triduum is a liturgical day of rank I:1, which is the highest there is, so it takes precedence over the solemnity of the Annunciation, which is a rank I:3 liturgical day.
Under the old calendar, "If this feast falls within Holy Week or Easter Week, its office [was] transferred to the Monday after the octave of Easter" (Catholic Encyclopedia). From what I can tell, if there were a conflict between the solemnity of the Annunciation and Good Friday (or the other days of Holy Week, which are rank I:2 days), the same would likely be the result today.
