The rules say that when a Solemnity (such as that of St Patrick in Ireland) falls on an important Sunday, such as one of the Sundays in Lent, it is celebrated on the Monday instead.
The Irish bishops have asked the Vatican if they can not apply the rule this year, and the Vatican has agreed. Accordingly the Solemnity of St Patrick will be celebrated in Ireland on Sunday the 17th of March, in place of the 2nd Sunday in Lent.
Universalis has just been updated to include this change. If you are in Ireland and haven’t received an update by Friday, you may want to update yourself “by hand”. Here are the instructions.