A.D. 1980 September
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Monday, September 1
- The Monday in the Fourteenth Week After Trinity
- Giles, Abbot and Confessor
Tuesday, September 2
- The Tuesday in the Fourteenth Week After Trinity
Wednesday, September 3
- The Wednesday in the Fourteenth Week After Trinity
Thursday, September 4
- The Thursday in the Fourteenth Week After Trinity
Friday, September 5
- The Friday in the Fourteenth Week After Trinity
Saturday, September 6
- The Saturday in the Fourteenth Week After Trinity
Sunday, September 7
- The Fourteenth Sunday after Trinity
- Evurtius, Bishop of Orleans
Monday, September 8
- The Monday in the Fifteenth Week After Trinity
- Nativity of the Blessed Virgin Mary
Tuesday, September 9
- The Tuesday in the Fifteenth Week After Trinity
Wednesday, September 10
- The Wednesday in the Fifteenth Week After Trinity
Thursday, September 11
- The Thursday in the Fifteenth Week After Trinity
Friday, September 12
- The Friday in the Fifteenth Week After Trinity
Saturday, September 13
- The Saturday in the Fifteenth Week After Trinity
Sunday, September 14
- The Fifteenth Sunday after Trinity
- Holy Cross Day
Monday, September 15
- The Monday in the Sixteenth Week After Trinity
Tuesday, September 16
- The Tuesday in the Sixteenth Week After Trinity
Wednesday, September 17
- The Wednesday in the Sixteenth Week After Trinity
- Lambert, Bishop and Martyr
- Ember Day
Thursday, September 18
- The Thursday in the Sixteenth Week After Trinity
Friday, September 19
- The Friday in the Sixteenth Week After Trinity
- Ember Day
Saturday, September 20
- The Saturday in the Sixteenth Week After Trinity
- Eve of Saint Matthew
- Ember Day
Sunday, September 21
- Saint Matthew, Apostle, Evangelist and Martyr
- The Sixteenth Sunday after Trinity
Monday, September 22
- The Monday in the Seventeenth Week After Trinity
Tuesday, September 23
- The Tuesday in the Seventeenth Week After Trinity
Wednesday, September 24
- The Wednesday in the Seventeenth Week After Trinity
Thursday, September 25
- The Thursday in the Seventeenth Week After Trinity
Friday, September 26
- The Friday in the Seventeenth Week After Trinity
- Saint Cyprian, Archbishop of Carthage and Martyr
Saturday, September 27
- The Saturday in the Seventeenth Week After Trinity
- Eve of Saint Michael
Sunday, September 28
- The Seventeenth Sunday after Trinity
Monday, September 29
- Saint Michael and All Angels (Michaelmas)
- The Monday in the Eighteenth Week After Trinity
Tuesday, September 30
- The Tuesday in the Eighteenth Week After Trinity
- Hierome, Priest, Confessor and Doctor