You might think that the 17th is the only day that matters, but the holiday is really celebrated all month long. The 2020 St. Patrick's Day Festival actually lasts from the Friday, March 13th, through Tuesday, March 17th, in Dublin. For five days and nights, the city will celebrate St. Paddy's with fairs, live music, historic tours, treasure hunts, food festivals, poetry slams, and more, and you'll want to take advantage by arriving at least a few days before the 17th. Also, you know, to get rid of jet lag so you're ready to have fun!