Easter, sometimes known as Easter Day or Easter Sunday, is an important annual religious feast celebrated in both the Muggle world and the wizarding world. Easter is the last day of Holy Week. Easter falls between late March and late April each year, as its date is not fixed.
In the wizarding world, Easter is celebrated as a week-long holiday. During this week, Hogwarts School of Witchcraft and Wizardry has holidays, during which students may return home or stay in the castle without classes.