| <-March 1964 | April 1964: | May 1964-> |
| Sunday: | Monday: | Tuesday: | Wednesday: | Thursday: | Friday: | Saturday: |
| 1: Wednesday of the Octave of Easter | 2: Thursday of the Octave of Easter | 3: Friday of the Octave of Easter | 4: The Memorial of Saint Isidore | 5: Divine Mercy Sunday | ||
| 6: The 2nd Monday of Easter | 7: The 2nd Tuesday of Easter | 8: The 2nd Wednesday of Easter | 9: The 2nd Thursday of Easter | 10: The 2nd Friday of Easter | 11: The 2nd Saturday of Easter | 12: The 3rd Sunday of Easter |
| 13: The 3rd Monday of Easter | 14: The 3rd Tuesday of Easter | 15: The 3rd Wednesday of Easter | 16: The 3rd Thursday of Easter | 17: The 3rd Friday of Easter | 18: The 3rd Saturday of Easter | 19: The 4th Sunday of Easter |
| 20: The 4th Monday of Easter | 21: The 4th Tuesday of Easter | 22: The 4th Wednesday of Easter | 23: The 4th Thursday of Easter | 24: The 4th Friday of Easter | 25: The Feast of Saint Mark, Evangelist | 26: The 5th Sunday of Easter |
| 27: The 5th Monday of Easter | 28: The 5th Tuesday of Easter | 29: The 5th Wednesday of Easter | 30: The 5th Thursday of Easter |