St. Joseph's Day, celebrated on March 19th each year, holds a significant place in the heart of people in Spain. The day commemorates the life of St. Joseph, who is recognized as the earthly father of Jesus Christ in Christian tradition. Celebrated annually, the holiday is observed with great devotion and enthusiasm, especially in the states of Aragon (AR), Asturias (AS), and Catalonia (CT) in Spain.

In Spain, St. Joseph's Day is often marked with a grand feast in honor of St. Joseph. Traditional foods associated with this day include 'zeppole' and 'sfinge'. This tradition dates back to the Middle Ages when the Spanish people decided to honor St. Joseph, who was known for his humbleness, his honesty, and his hard work as a carpenter. The feast is also associated with lauding the value of labor and workmanship.

Furthermore, St. Joseph's Day is a public holiday in some states of Spain. In particular, Aragon, Asturias, and Catalonia observe this day with numerous religious and cultural activities. Fairs, processions, and parades often take place, filling the streets with exuberant celebrations and colorful decorations. St. Joseph's Day is not just a day of religious observance but also a day for people to come together, rejoice, and maintain their centuries-long tradition and culture.