St. Cajetan's Day is celebrated on August 7th in honor of St. Cajetan, an Italian priest and co-founder of the Theatines, a religious order. He is known for his dedication to helping the poor and promoting the importance of prayer and faith. The day is observed in various countries, particularly in Italy and among Catholic communities. Many people attend church services, participate in processions, and engage in charitable activities to commemorate his life and teachings. St. Cajetan is also recognized as the patron saint of job seekers and the unemployed, making this day significant for those seeking work.