St. Patrick's Day is celebrated on March 17th each year. It is a cultural and religious holiday that honors Saint Patrick, the patron saint of Ireland. The holiday originated in Ireland but is now celebrated in many parts of the world, particularly in countries with Irish communities. St. Patrick's Day is associated with various traditions, including wearing green attire, attending parades, decorating with shamrocks, and enjoying Irish food and drinks, such as corned beef and cabbage and Guinness beer. It is a festive day to celebrate Irish culture and heritage.