saint's day

plural saints' days

1. A day in a liturgical calendar that is observed in honour of a saint; not necessarily a holiday.

   To-day is a saint's day. This is a Catholic part of Switzerland, and they have a great many holidays because they have a great many saints. There is hardly a week without some saint in it who has to be commemorated, and often there are two in the same week, and sometimes three.

   1920, [Elizabeth von Arnim], In the Mountains, Garden City, New York: Doubleday, Page & Company, page 43

   1 more example

   One saint's day in mid-term a certain newly appointed suffragan-bishop came to the school chapel, and there preached on “The Inner Life.” He at once secured attention by his informal method, and when presently the coughing of Jarvis […] interrupted the sermon, he altogether captivated his audience with a remark about cough lozenges being cheap and easily procurable.

   1918, W[illiam] B[abington] Maxwell, chapter III, in The Mirror and the Lamp, Indianapolis, Ind.: The Bobbs-Merrill Company, →OCLC