Apr 1, 2013 April Fool's Day
Apr 1, 2013 Easter Monday
Apr 1, 2013 César Chávez Day observed
Apr 2, 2013 Last day of Passover
Apr 2, 2013 World Autism Awareness Day
Apr 2, 2013 Pascua Florida Day
Apr 4, 2013 United Nations' Mine Awareness Day
Apr 6, 2013 National Tartan Day
Apr 7, 2013 United Nations' World Health Day
Apr 7, 2013 Day of Remembrance of the Victims of the Rwanda Genocide
Apr 12, 2013 International Day of Human Space Flight
Apr 15, 2013 Father Damien Day
Apr 15, 2013 Patriot's Day
Apr 15, 2013 Boston Marathon
Apr 16, 2013 Yom Ha'atzmaut
Apr 16, 2013 Emancipation Day
Apr 16, 2013 National Library Workers' Day
Apr 18, 2013 International Day for Monuments and Sites
Apr 20, 2013 Chinese Language Day
Apr 21, 2013 San Jacinto Day
Apr 22, 2013 Oklahoma Day
Apr 22, 2013 Confederate Memorial Day
Apr 22, 2013 Confederate Heroes' Day
Apr 23, 2013 World Book and Copyright Day
Apr 23, 2013 English Language Day
Apr 24, 2013 Administrative Professionals Day
Apr 25, 2013 World Malaria Day
Apr 25, 2013 Take our Daughters and Sons to Work Day
Apr 26, 2013 World Intellectual Property Day
Apr 26, 2013 Global Youth Service Day
Apr 26, 2013 Confederate Heroes' Day
Apr 28, 2013 World Day for Safety and Health at Work
Apr 29, 2013 Day of Remembrance for all Victims of Chemical Warfare
Apr 29, 2013 Confederate Memorial Day
Apr 30, 2013 International Jazz Day