Bible Dictionaries
Movable Feasts and Fasts

The American Church Dictionary and Cyclopedia

Those Feasts and Fasts which are not observed on a fixed date, but are variable being dependent on the time Easter is kept. Easter Day is always the first Sunday after the full moon which happens upon or next after the Twenty-first day of March; and if the full moon happen upon a Sunday, Easter Day is the Sunday after. The Movable Feasts are the following: Advent Sunday which is always the nearest Sunday to the Feast of St. Andrew (Nov. 30) whether before or after; the three remaining Sundays in Advent; Septuagesima, Sexagesima and Quinquagesima Sundays; the Six Sundays in Lent; Rogation Sunday; Ascension Day, Whitsun Day and Trinity Sunday; Monday and Tuesday in Easter Week; Monday and Tuesday in Whitsun Week; also the number of Sundays during the Epiphany and Trinity Seasons is variable, these Seasons being longer or shorter according to the time Easter is kept. The Movable Fasts are the Forty Days of Lent, including Ash Wednesday, Good Friday, Easter Even and the Lenten Ember Days; the Rogation Days and the Whitsun Tide Ember Days.

Bibliography Information
Miller, William James. Entry for 'Movable Feasts and Fasts'. The American Church Dictionary and Cyclopedia. https://www.studylight.org/​dictionaries/​eng/​acd/​m/movable-feasts-and-fasts.html. 1901.