I’m of Welsh descent, so this story caught my attention. (Fedora Tip: Connexions)
"Wales has the perfect excuse for a triple celebration of St David’s Day this year. The traditional festivities…will be on 1 March as usual. But a clash with a major Christian festival means the [Anglican] Church in Wales has moved its celebrations to 2 March. And the Catholic solution to the problem, a clash with Ash Wednesday, is to move St David’s Day to 28 February."