May 1, 2025 Yom Ha'atzmaut
May 1, 2025 National Day of Prayer
May 2, 2025 World Tuna Day
May 2, 2025 Kentucky Oaks
May 3, 2025 World Press Freedom Day
May 3, 2025 Kentucky Derby
May 3, 2025 National Explosive Ordnance Disposal (EOD) Day
May 4, 2025 Kent State Shootings Remembrance
May 4, 2025 Rhode Island Independence Day
May 5, 2025 Cinco de Mayo
May 6, 2025 National Nurses Day
May 8, 2025 Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War
May 8, 2025 World Ovarian Cancer Day
May 8, 2025 Victory in Europe Day
May 9, 2025 Confederate Memorial Day observed
May 9, 2025 Native American Day
May 9, 2025 Military Spouse Appreciation Day
May 10, 2025 World Migratory Bird Day
May 10, 2025 Confederate Memorial Day
May 10, 2025 Confederate Memorial Day
May 11, 2025 Mother's Day
May 12, 2025 Day of Vesak
May 12, 2025 International Nurses Day
May 15, 2025 International Day of Families
May 15, 2025 Peace Officers Memorial Day
May 16, 2025 National Defense Transportation Day
May 17, 2025 World Information Society Day
May 17, 2025 Armed Forces Day
May 17, 2025 Preakness Stakes
May 20, 2025 World Autoimmune
May 21, 2025 World Day for Cultural Diversity for Dialogue and Development
May 21, 2025 Emergency Medical Services for Children Day
May 22, 2025 International Day for Biological Diversity
May 22, 2025 National Maritime Day
May 22, 2025 Harvey Milk Day
May 23, 2025 International Day to End Obstetric Fistula
May 25, 2025 African Liberation Day
May 25, 2025 National Missing Children's Day
May 26, 2025 Memorial Day
May 26, 2025 Jefferson Davis' Birthday
May 29, 2025 Ascension Day
May 29, 2025 International Day of United Nations Peacekeepers
May 31, 2025 World No Tobacco Day
May 20, 2025 Autoinflammatory Arthritis Day