Ever wonder why easter is at a different time each year? Christmas is not, not new years, or any other holiday. They are on the same day each and every year. OK. now then . Easter was originally celebrated by some early churches on whatever day the Passover began, and by others on the Sunday included in the Passover week. The council of Nicaea decided in favor of the Sunday observance and left it to the church at Alexandria to formulate the rule, which is as follows.
Easter is the first Sunday after the 14th day of the moon (nearly the full moon) which occurs on or immediately after March 21st.
Thus if the 14th day of the moon occurs on Sunday, Easter is observed one week later. Unlike Christmas, Easter is a moveable feast because it depends on the moon's phases; its date can range from March 22nd to April 25th.
Easter is the first Sunday after the 14th day of the moon (nearly the full moon) which occurs on or immediately after March 21st.
Thus if the 14th day of the moon occurs on Sunday, Easter is observed one week later. Unlike Christmas, Easter is a moveable feast because it depends on the moon's phases; its date can range from March 22nd to April 25th.