May 1, 2014 National Day of Prayer
May 2, 2014 Kentucky Oaks
May 3, 2014 World Press Freedom Day
May 3, 2014 Kentucky Derby
May 3, 2014 National Explosive Ordnance Disposal (EOD) Day
May 4, 2014 Kent State Shootings Remembrance
May 4, 2014 Rhode Island Independence Day
May 5, 2014 Cinco de Mayo
May 6, 2014 Yom Ha'atzmaut
May 6, 2014 National Nurses Day
May 6, 2014 Primary Election Day
May 8, 2014 Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War
May 8, 2014 World Ovarian Cancer Day
May 8, 2014 Victory in Europe Day
May 9, 2014 Confederate Memorial Day observed
May 9, 2014 Native American Day
May 9, 2014 Military Spouse Appreciation Day
May 10, 2014 World Migratory Bird Day
May 10, 2014 Confederate Memorial Day
May 10, 2014 Confederate Memorial Day
May 11, 2014 Mother's Day
May 12, 2014 International Nurses Day
May 13, 2014 Day of Vesak
May 13, 2014 Primary Election Day
May 15, 2014 International Day of Families
May 15, 2014 Peace Officers Memorial Day
May 16, 2014 National Defense Transportation Day
May 17, 2014 World Information Society Day
May 17, 2014 Armed Forces Day
May 17, 2014 Preakness Stakes
May 20, 2014 World Autoimmune Arthritis Day
May 21, 2014 World Day for Cultural Diversity for Dialogue and Development
May 21, 2014 Emergency Medical Services for Children Day
May 22, 2014 International Day for Biological Diversity
May 22, 2014 National Maritime Day
May 22, 2014 Harvey Milk Day
May 23, 2014 International Day to End Obstetric Fistula
May 25, 2014 African Liberation Day
May 25, 2014 National Missing Children's Day
May 26, 2014 Memorial Day
May 26, 2014 Jefferson Davis' Birthday
May 27, 2014 Isra and Mi'raj
May 29, 2014 Ascension Day
May 29, 2014 International Day of United Nations Peacekeepers
May 31, 2014 World No Tobacco Day