This is a list of movable observances within Western Christianity.
It includes secular observances which are calculated by religious observances.
This list does not necessarily imply either official status nor general observance.
First Sunday of the year, unless the Sunday falls on January 1, 6, or 7, then January 2: January 5 First Monday: January 6 Monday after January 6: January 12 Sunday following January 6: January 12 Day after Plough Sunday: January 13 Third Sunday: January 19 9th Sunday before Easter in Western Christianity: February 9 2nd Sunday before Ash Wednesday (Western Christianity): February 16 Last Thursday before Lent (Western Christianity): February 20 Saturday before Ash Wednesday: February 22 Sunday before Ash Wednesday (Western Christianity): February 23 Monday before Ash Wednesday: February 24 Tuesday before Ash Wednesday: February 25 46 days before Easter: February 26 Friday after Ash Wednesday: February 28 First Sunday of Lent: March 1 March 19, unless the 19th is a Sunday, then March 20: March 19 Fourth Sunday of Lent, 21 days before Easter Sunday: March 22 Fifth Sunday of Lent: March 29 Week before Easter: Second Friday of April: April 10 Easter Week: April 12-18 Sunday after Easter: April 19 Third Sunday after Easter: May 3 Monday and Tuesday in the week following the third Sunday of Easter: May 4–5 Fourth Sunday after Easter: May 10 Fourth Friday after Easter: May 15 Third Sunday of May: Sunday preceding the Rogation days: May 17 Monday, Tuesday, and Wednesday preceding Feast of the Ascension: May 18–20 39 days after Easter: May 21 Seventh Sunday/49 days after Easter: May 31 Day after Whitsun: June 1 Day after Whit Monday: June 2 First Thursday after start of Pentecost: June 4 Friday of the week of Whitsun: June 5 First Sunday after Pentecost: June 7 Thursday after Trinity Sunday; 60 days after Easter, or the Sunday immediately following this: June 11 First Thursday after Corpus Christi: June 12 19 days after Pentecost: June 18 Sunday nearest to June 29: June 28 Second Sunday in July: July 12 Last Sunday in July: July 26 Third Weekend: August 15-16 Thursday following the first Sunday: September 6 First Sunday after September 4: September 6 Weekend after first Monday: September 7 Second Sunday: September 13 Third Sunday: September 20 Monday after third Sunday: September 20 First Sunday: October 4 Second Sunday: October 11 Last Sunday: October 25 Saturday between October 31 – November 6: Second Sunday before Advent: November 8 Second Wednesday before the First Sunday in Advent: November 11 Sunday nearest November 11: November 14 Last Sunday before First Advent Sunday: November 22 Fourth Sunday before Christmas Day: November 29 First Friday: December 4 First Sunday: December 6 Seven days, starting on First Monday: December 7-13 Sunday two weeks before Christmas: December 13 Second-final Sunday before Christmas Day: December 13 Thursday of the last full week before Christmas: December 17 Last Friday before Christmas: December 18 Last Saturday before Christmas: December 19 Sunday before Christmas: December 20 Winter Solstice: December 21 The Sunday between Christmas Day and New Year's Day (both exclusive), or December 30 if both Christmas Day and the Solemnity of Mary, Mother of God are Sundays: December 27