• UN General Assembly High-level plenary meeting to commemorate the eightieth anniversary of the establishment of the United Nations (22 September) (Preliminary Programme)
  • High-level International Conference for the Peaceful Settlement of the Question of Palestine and the Implementation of the Two-State Solution – 5th plenary meeting (resumed) (22 September)
  • High-level meeting of the General Assembly on the 30th anniversary of the Fourth World Conference on Women – Theme: “Recommitting to, resourcing and accelerating the implementation of the Beijing Declaration and Platform for Action to achieve gender equality and the empowerment of all women and girls” (22 September) (Concept note) (Programme)
  • Event SDG Moment 2025 – Keeping the Promise”  (22 September) (Concept note and draft programme)

Forthcoming meetings:

  • UN General Assembly 4th and 5th plenary meetings: (Day 1); Report of the Secretary-General on the work of the Organization - Item 110 (); Opening of the general debate - Item 8 (23 September)
  • UN Security Council Open debate on Maintenance of international peace and security: Artificial intelligence and international peace and security: addressing the complexities, multifaceted impacts and responsible use (24 September)
  • First Biennial Summit for a sustainable, inclusive and resilient global economy (24 September) ()
  • Special High-Level Event on Climate Action (24 September) (Media advisory)

The United Nations observes designated days, weeks, years, and decades, each with a theme, or topic. By creating special observances, the United Nations promotes international awareness and action on these issues. The majority of observances have been established by resolutions of the United Nations General Assembly, although some have been designated by UN specialized agencies. The United Nations also observes anniversaries of key events in its history.