May 20, 2025 Special Days: Which Day Is Today? Know Holidays, Festivals, Events, Birthdays, Birth and Death Anniversaries Falling on Today's Calendar Date
May 20, 2025, features diverse observances including World Metrology Day, World Bee Day, and World Autoimmune and Autoinflammatory Arthritis Day. It also celebrates National Rescue Dog Day, Women in Aerospace Day, Streaming Day, Quiche Lorraine Day, and High Heel Day—highlighting science, health, advocacy, and fun all in one day.