The season of Easter lasts the 50 days (7 weeks) from Easter
Sunday until Pentecost Sunday. Easter marks the end of Lent and is
followed by Eastertide (or Easter Season)
Easter Day is actually eight days long (known as the Easter
Octave). In the Catholic Church each day of the octave is treated
as if it was Easter Sunday.
The School Easter Holiday can last up to 2 weeks.