St.Patricks day this year has been changed to today 15th March by the catholic church so that it does'nt coincide with Holy Monday (17th March for 2008). Although i dont think many will take heed of this change.
www.channel4.com/news/articles/world/st+patricks+day+to+be+moved+in+2008/608847 - 35k
Bit mad as St. Patricks day is generally held on the 17th, but as this is the case Happy St.Patricks Day and careful on the Guiness.
Paul