When is World Radio Day in United States?

February 1, National Freedom Day February 2, National Wear Red Day February 2, Groundhog Day February 2, World Wetlands Day February 4, Rosa Parks Day February 4, World Cancer Day February 4, Super Bowl February 6, International Day of Zero Tolerance for Female Genital Mutilation February 7, Isra and Mi'raj February 10, Chinese New Year February 11, International Day of Women and Girls in Science February 11, World Day of the Sick February 12, Lincoln's Birthday February 13, Shrove Tuesday/Mardi Gras February 13, World Radio Day February 14, Statehood Day February 14, Valentine's Day February 14, Ash Wednesday February 15, Susan B. Anthony's Birthday February 16, Elizabeth Peratrovich Day February 19, Presidents' Day February 19, Daisy Gatson Bates Day February 20, World Day of Social Justice February 21, International Mother Language Day February 28, Linus Pauling Day February 29, Leap Day