These graphics explain why Easter Sunday changes each year based on ancient interpretations of the solar and lunar cycles.

The date of Easter changes each year and is determined by the lunar calendar. Passover and Easter are both religious holidays that can occur in March or April. This year, the first full moon after ...

Easter is a moveable feast - it can happen anytime between March 22 and April 25. It is set using a mathematical calculation ...

Easter's date is based on the lunar calendar. Easter is observed on the first Sunday after the first full moon following the spring equinox. Easter can be as early as March 22 or as late as April 25.

Unlike many other holidays, the Easter holiday dates change every year. It can be as early as March 22 or as late as April 25, which means the Lenten period and Good Friday also change.