|The Nativity of the Lord (Christmas)||Fri-25-Dec-2020|
|First Sunday after Christmas||Sun-27-Dec-2020|
|Second Sunday After Christmas||Sun-03-Jan-2021|
|First Sunday after Epiphany (or Baptism of The Lord)||Sun-10-Jan-2021|
|Second Sunday after Epiphany||Sun-17-Jan-2021|
|Third Sunday after Epiphany||Sun-24-Jan-2021|
|Feast of the Lord and Giver of Life||Sun-17-Jan-2021|
|Fourth Sunday after Epiphany||Sun-31-Jan-2021|
|Fifth Sunday after Epiphany||Sun-07-Feb-2021|
|Sixth Sunday after Epiphany||Sun-14-Feb-2021 Not Used this year|
|Seventh Sunday after Epiphany||Sun-21-Feb-2021 Not Used this year|
|Eighth Sunday after Epiphany||Sun-28-Feb-2021 Not Used this year|
|Last Sunday after Epiphany||Sun-14-Feb-2021||Ash Wednesday||Wed-17-Feb-2021||Lent 1||Sun-21-Feb-2021|
|Monday in Holy Week||Mon-29-Mar-2021|
|Tuesday in Holy Week||Tue-30-Mar-2021|
|Wednesday in Holy Week||Wed-31-Mar-2021|
|Thursday in Holy Week||Thu-01-Apr-2021|
|Friday in Holy Week||Fri-02-Apr-2021|
|Saturday in Holy Week||Sat-03-Apr-2021|
|Second Sunday in Easter||Sun-11-Apr-2021|
|Third Sunday in Easter||Sun-18-Apr-2021|
|Fourth Sunday in Easter||Sun-25-Apr-2021|
|Fifth Sunday in Easter||Sun-02-May-2021|
|Sixth Sunday in Easter||Sun-09-May-2021|
|Seventh Sunday in Easter (or Ascension Sunday)||Sun-16-May-2021|
|This Ordinary Season Start with||Proper 5: 06-Jun-2021|
|Proper 1||Sun-09-May-2021 Not used this year|
|Proper 2||Sun-16-May-2021 Not used this year||Proper 3||Sun-23-May-2021 Not used this year|
|Proper 4||Sun-30-May-2021 Not used this year||Proper 5||Sun-06-Jun-2021|
|Proper 6||Sun-13-Jun-2021||Proper 7||Sun-20-Jun-2021|
|Proper 8||Sun-27-Jun-2021||Proper 9||Sun-04-Jul-2021|
|Proper 10||Sun-11-Jul-2021||Proper 11||Sun-18-Jul-2021|
|Proper 12||Sun-25-Jul-2021||Proper 13||Sun-01-Aug-2021|
|Proper 14||Sun-08-Aug-2021||Proper 15||Sun-15-Aug-2021|
|Proper 16||Sun-22-Aug-2021||Proper 17||Sun-29-Aug-2021|
|Proper 18||Sun-05-Sep-2021||Proper 19||Sun-12-Sep-2021|
|Proper 20||Sun-19-Sep-2021||Proper 21||Sun-26-Sep-2021|
|Proper 23||Sun-10-Oct-2021||Proper 24||Sun-17-Oct-2021|
|Proper 25||Sun-24-Oct-2021||Proper 26||Sun-31-Oct-2021|
|Proper 29 (or Christ the King)||Sun-21-Nov-2021|
|Advent 1 (Start of Next Years Church Calendar)||Sun-28-Nov-2021|
|Corpus Christi||Thu-03-Jun-2021||Missions Offering(All Saints Sunday)||Sun-07-Nov-2021|
Using Christmas Day and Easter, for the year you select, it calculates the Seasons each time.
The Church Calendar has two fixed points: the Nativity of the Lord (Christmas), always on the 25th of December, and Easter, the first Sunday after the first full moon occurring on or after the spring equinox (the date (twice each year) at which the sun crosses the celestial equator, when day and night are of equal length). Modern programming languages now have a function called easter-date(). It will find the date of Easter in any year in the parentheses. This program uses these two dates (Christmas and Easter) to determine everything else.
Advent always has 4 Sundays, but it can be either 3 or 4 weeks. When Advent 4 is on Dec 24th, the morning is Advent 4, and then the afternoon is Christmas Eve. The Advent Sundays are calculated by finding the four Sundays before Dec 25th, even if one of those Sundays is Christmas Eve. There can be up to two Sundays after Christmas, but most years, there is only one.
This is the twelve days of Christmas. Twelve days after Christmas (Dec 25) is Epiphany (Jan 6). The Sunday nearest to Jan 6 can be celebrated as Epiphany Sunday, or the first Sunday after Epiphany (The Baptism of the Lord). Epiphany Sundays are then counted until the Sunday before Ash Wednesday. The reading labeled the Last week of Epiphany is always last. So, if you have five weeks of Epiphany, instead of celebrating the fifth week, you celebrate the Last Sunday. An excellent way to remember is that the Last Sunday of Epiphany has the Ash Wednesday readings.
Lent always has 46 days, 40 not counting the Sundays (which are a Feast day in Lent). It is always calculated back from Easter. Like Advent and the Easter Season, Lent has a fixed number of Sundays, and other seasons expand and contract to fit them.
In 325CE, the Council of Nicaea established that Easter would be held on the first Sunday after the first full moon occurring on or after the spring equinox. From that point forward, the Easter date depended on the ecclesiastical approximation of March 21 for the equinox. Easter is delayed by one week if the full moon is on Sunday. Easter can be as early March 21st as in the year 1818 or as late as May 10 in the year 2268.
|Easter Determines these dates|
|Ash Wednesday (47 days before Easter)|
|Ascension Day (10 days before Whit Sunday)|
|Palm Sunday (1 week before Easter Sunday)|
|Pentecost (Whit Sunday) (7 weeks after Easter Sunday)|
|The Easter Season always has seven Sundays, plus Pentecost.|
Ends the fifty-day season of Easter (that’s what the Greek word “Pentecost” means!) It does not begin a “Pentecost Season."
Is the first Sunday after Pentecost.
Ordinary time (AKA Kingdomtide) does not mean common. It refers to Ordinal time, or Ordinal numbers. First, Second, Third, etc., are ranks, versus Cardinal numbers (1, 2, 3, etc.) which mean how many. Ordinary weeks are set backward from the last week of the Church Year, which is always Proper 29. When do the Proper’s start? It has been determined that the earliest possible Day of Pentecost, May 10, hence Proper 1, is “closest to May 11.” The Proper’s are planned backward. The Sunday before Advent 1 (of the following year) is Proper 29. Then the Proper’s fill in before that until they hit Pentecost, and the Proper closet to that Sunday after Pentecost is used. The early Proper’s are rarely used, but those reading still find their way in the lectionary because they are repeats of the last weeks of Epiphany. You may notice the readings for Proper 1 are just the same as the readings for the 6th Sunday after Epiphany; Proper 2 is the same as the seventh Sunday after Epiphany. This continues to the 8th Sunday after Epiphany, the greatest number of Sundays possible after Epiphany..
|Sixth Sunday after Epiphany||= Proper 1|
|Seventh Sunday after Epiphany||= Proper 2|
|Eighth Sunday after Epiphany||= Proper 3|
Any Sundays closest to a date are calculated like this
Sunday < Monday <Tuesday <Wednesday Thursday> Friday> Saturday > Sunday
The Sunday Lectionary Cycle (Year A, B, or C) and Daily Office Cycle (One or Two) are simple. Daily Office One years start in even years (Advent 1 Sunday), and Daily Office Years start in odd years. The Sunday Lectionary Cycle starts incrementing 1968 by three years, and any Advent Sunday 1 that matches one of those years is Year A, same for Year B (1969) and Year C (1970).