In Britain Easter occurs at a different time each year. It is observed on the first Sunday after the first full moon following the first day of spring in the Northern Hemisphere. This means that the festival can occur on any Sunday between March 22 and April 25. Not only is Easter the end of the winter it is also the end of Lent, traditionally a time of fasting in the Christian calendar. It is therefore often a time of fun and celebration.
The Friday before Easter Sunday and the Monday after are a bank holiday in the UK. Over Easter schools in the UK close for two weeks, just enough time to digest all the chocolate. :)