Easters exact date varies so much because it actually depends on the moon. The holiday is set to coincide with the first Sunday after the Paschal Full Moon, the first full moon after the vernal equinox. Because the Jewish calendar is tied to solar and lunar cycles, the dates of Passover and Easter fluctuate each year.

Why does the date for Easter change?

The date of Easter Sunday depends on the spring equinox For people who are not Christian, it is also a time to come together as a family. Unlike Christmas, the date of Easter is subject to change, as its date is determined by a lunisolar calendar.