Don't all UK schools set their own holiday dates now?
Some school years are divided into six week semesters now rather than the traditional terms. I believe some schools have been off for two weeks already but will still have good Friday and Easter Monday off, whereas some will have the Easter weekend off, back to school on the Tuesday for the rest of the week, then off for two weeks the following Monday.
Must make it difficult to families to plan going away, although perhaps it will also make cheaper for some. Glad I'm all finished with all that...