Monthly Liturgical Calendar
| September 2010 | Ordinary Form | Extraordinary Form |
| Wed, 1 | Votive Mass of St. Joseph | Feria after the 14th Sunday after Pentecost |
| 4th Class Feria, Commemorations of St. Giles & The Twelve Holy Brothers | ||
| Thur, 2 | Bls. John Francis Burte, Severin Girault, & Companions, Martyrs | St. Stephen, Confessor |
| Memorial | 3rd Class Feast | |
| Fri, 3 | St. Gregory the Great, Pope & Doctor of the Church | St. Pius X, Pope, Confessor |
| Memorial | 3rd Class Feast | |
| Sat, 4 | Our Lady on Saturday or St. Rose of Viterbo, Virgin | St. Rose of Viterbo, Virgin, Tertiary |
| Memorial | 3rd Class Feast | |
| Sun, 5 | 23rd Sunday of Ordinary Time | Fifteenth Sunday after Pentecost |
| 2nd Class Feast | ||
| Mon, 6 | Labor Day or Votive Mass of St. Pio of Pietrelcina | Feria after the 15th Sunday after Pentecost |
| Memorial | 4th Class Feria | |
| Tues, 7 | Votive Mass of St. Anthony of Padua | Feria after the 15th Sunday after Pentecost |
| 4th Class Feria | ||
| Wed, 8 | Nativity of the Blessed Virgin Mary | The Nativity of the Blessed Virgin Mary |
| Feast | 2nd Class Feast, Commemoration of St. Adrian | |
| Thu, 9 | St. Peter Claver, Priest | Feria after the 15th Sunday after Pentecost |
| Memorial | 4th Class Feria, Commemoration of St. Gorgonius | |
| Fri, 10 | Votive Mass of the Sacred Heart | St. Nicholas of Tolentino, Confessor |
| 3rd Class Feast | ||
| Sat, 11 | Our Lady on Saturday or Bl. Bonaventure of Barcelona |
Bl. Bonaventure of Barcelona, Confessor, 1st Order |
| Memorial | 3rd Class Feast, Commemoration of Sts. Protus & Hyacinth | |
| Sun, 12 | 24th Sunday of Ordinary Time | Sixteenth Sunday after Pentecost |
| 2nd Class Feast, Commemoration of the Most Holy Name of Mary | ||
| Mon, 13 | St. John Chrysostom, Bishop & Doctor of the Church | Bl. Apollinaris & Companions, Martyrs, 1st & 3rd Orders |
| Memorial | 3rd Class Feast | |
| Tues, 14 | The Exaltation of the Holy Cross | The Exaltation of the Holy Cross |
| Feast | 2nd Class Feast | |
| Wed, 15 | Our Lady of Sorrows | The Seven Sorrows of the Blessed Virgin Mary |
| Feast | 2nd Class Feast, Commemoration of St. Nicomedes |
*Note: These calendars are based partly on the Franciscan calendars observed in the United States of America, and partly on the calendars proper to the religious family of the Franciscans of the Immaculate. The latter are in use ad experimentum, having been submitted to the Holy See for approval.