| <-March 1855 | April 1855: | May 1855-> |
| Sunday: | Monday: | Tuesday: | Wednesday: | Thursday: | Friday: | Saturday: |
| 1: The 5th Sunday of Lent | 2: Palm Sunday (6th Sunday of Lent) | 3: Tuesday of Holy Week | 4: The Memorial of Saint Isidore | 5: Thursday of Holy Week | 6: Holy Thursday | 7: Good Friday |
| 8: Holy Saturday | 9: Easter Sunday | 10: Tuesday of the Octave of Easter | 11: Wednesday of the Octave of Easter | 12: Thursday of the Octave of Easter | 13: Friday of the Octave of Easter | 14: Saturday of the Octave of Easter |
| 15: Sunday of the Octave of Easter | 16: Divine Mercy Sunday | 17: The 2nd Tuesday of Easter | 18: The 2nd Wednesday of Easter | 19: The 2nd Thursday of Easter | 20: The 2nd Friday of Easter | 21: The 2nd Saturday of Easter |
| 22: The 2nd Sunday of Easter | 23: The 3rd Monday of Easter | 24: The 3rd Tuesday of Easter | 25: The Feast of Saint Mark, Evangelist | 26: The 3rd Thursday of Easter | 27: The 3rd Friday of Easter | 28: The 3rd Saturday of Easter |
| 29: The 3rd Sunday of Easter | 30: The 4th Monday of Easter |