United Nations Day, on 24 October, marks the anniversary of the entry into force in 1945 of the UN Charter. With the ratification of this founding document by the majority of its signatories, including the five permanent members of the Security Council, the United Nations officially came into being.
UN Day, celebrated every year, offers the opportunity to amplify our common agenda and reaffirm the purposes and principles of the UN Charter that have guided us for the past 80 years.
Last year, we celebrated 80 years of the United Nations. This year, we celebrate 80 years of the United Nations Association of San Diego. Please mark your calendar for October 24, 2026. Details to be revealed soon!
