Easter is always on a Sunday, but it changes every year (but it’s usually 3 weeks after Mothers Day).
It is on the Sunday following the ‘first full moon’ after the ‘first day of spring’. eg in March or April.
Traditionally, the church celebrates Easter with bell-ringing and White Lillies…though it always makes ‘me’ think of daffodils…….probably because I love them so much! :o)