Today is October 31, 2023. According to the search results, today is National Caramel Apple Day, Halloween, National Unity Day (Rashtriya Ekta Diwas), International Choreographers Day, World Day for Audiovisual Heritage, Reformation Day, National Doorbell Day, Girl Scout Founders Day, National Magic Day, National Knock Knock Joke Day, and National Name Your Car Day. However, it is important to note that some of these holidays may be specific to certain countries or regions.