When is International Widows' Day in United States?

June 1, Global Day of Parents June 1, Statehood Day June 2, Shavuot June 2, Jefferson Davis' Birthday June 3, Jefferson Davis' Birthday June 4, International Day of Innocent Children Victims of Aggression June 5, World Environment Day June 6, D-Day June 7, Belmont Stakes June 7, Eid al-Adha June 8, Pentecost June 8, World Oceans Day June 9, Whit Monday June 11, Kamehameha Day June 12, World Day Against Child Labour June 13, International Albinism Awareness Day June 13, Friday the 13th June 14, World Blood Donor Day June 14, Army Birthday June 14, Flag Day June 15, Bunker Hill Day June 15, Father's Day June 15, Trinity Sunday June 15, World Elder Abuse Awareness Day June 16, International Day of Family Remittances June 17, World Day to Combat Desertification and Drought June 19, Juneteenth June 19, International Day for the Elimination of Sexual Violence in Conflict June 19, Emancipation Day June 19, Corpus Christi June 20, West Virginia Day June 20, American Eagle Day June 20, June Solstice June 20, World Refugee Day June 21, International Day of Yoga June 23, Public Service Day June 23, International Widows' Day June 25, Day of the Seafarer June 26, International Day in Support of Victims of Torture June 26, International Day Against Drug Abuse and Illicit Trafficking June 27, Muharram June 30, International Asteroid Day