Behind the campaign “100 Days of Local Multilateralism” lies a coordinated political calendar that local and regional governments are using to align their advocacy in 2026. The process runs from 21 April 2026 (World Creativity and Innovation Day) to 30 July 2026, bringing together several key global milestones into a single political sequence.
The first major milestone is the World Urban Forum (WUF13), taking place from 17 to 22 May 2026 in Baku, Azerbaijan, which will bring local governments, national authorities and international institutions together to discuss the future of urban development and multilevel governance.
This is followed by the UCLG World Congress and World Summit of Local and Regional Leaders in Tangier, 22–25 June 2026, a key political moment for the local government movement to consolidate shared positions on multilateral reform, public services, climate action and rights.
The sequence culminates at the High-Level Political Forum (HLPF), 7–15 July 2026, where local and regional governments will engage in the global review of Sustainable Development Goal 11 (SDG 11) on sustainable cities and communities. The midterm review of the New Urban Agenda will take place on 16–17 July 2026, immediately following the HLPF, providing a further opportunity to position local priorities within post-2030 discussions on urban development and multilevel governance.
Beyond these flagship moments, the 100 Days calendar also connects to parallel processes shaping local government advocacy in 2026, including the Commission on the Status of Women in March 2026, which will include a dedicated Local and Regional Governments Day on 11 and 12 March, the Conference of States Parties to the Convention on the Rights of Persons with Disabilities (COSP) in June 2026, and the UN Water Conference in December 2026.