How does the Easter Cycle work?
The Easter Cycle centers around the celebration of the Christian Passover-of-the-Resurrection (Easter), which always falls on the Sunday after the first full moon of the vernal equinox. From Easter, we count-back 40 days to the beginning of Lent and count 40 Days ahead to Ascension Thursday; 50 days ahead to Pentecost. Following Pentecost, the Easter Cycle continues on Sundays. This is why our Church counts Sundays after Pentecost.