| <-February 1864 | March 1864: | April 1864-> |
| Sunday: | Monday: | Tuesday: | Wednesday: | Thursday: | Friday: | Saturday: |
| 1: The 3rd Tuesday of Lent | 2: The 3rd Wednesday of Lent | 3: The 3rd Thursday of Lent | 4: The 3rd Friday of Lent | 5: The 3rd Saturday of Lent | ||
| 6: The 3rd Sunday of Lent | 7: Laetare Sunday (4th Sunday of Lent) | 8: The 4th Tuesday of Lent | 9: The 4th Wednesday of Lent | 10: The 4th Thursday of Lent | 11: The 4th Friday of Lent | 12: The 4th Saturday of Lent |
| 13: The 4th Sunday of Lent | 14: The 5th Monday of Lent | 15: The 5th Tuesday of Lent | 16: The 5th Wednesday of Lent | 17: The Memorial of Saint Patrick | 18: The 5th Friday of Lent | 19: The Solemnity of Saint Joseph, Husband of Mary |
| 20: The 5th Sunday of Lent | 21: Palm Sunday (6th Sunday of Lent) | 22: Tuesday of Holy Week | 23: Wednesday of Holy Week | 24: Thursday of Holy Week | 25: Holy Thursday | 26: Good Friday |
| 27: Holy Saturday | 28: Easter Sunday | 29: Tuesday of the Octave of Easter | 30: Wednesday of the Octave of Easter | 31: Thursday of the Octave of Easter |