High-Level Political Forum
The High-level Political Forum on Sustainable Development (HLPF) will be convened from Monday, 14 July, to Wednesday, 23 July 2025, under the auspices of the Economic and Social Council. This includes the three-day ministerial segment of the forum from Monday, 21 July, to Wednesday, 23 July 2024, as part of the High-level Segment of ECOSOC.
The theme of the HLPF is “Advancing sustainable, inclusive, science- and evidence-based…
International Day of the World’s Indigenous Peoples
The International Day of the World’s Indigenous Peoples takes place annually on 9 August to celebrate Indigenous Peoples and their knowledge and raise awareness of the needs of these groups. The Day highlights rights of Indigenous Peoples to make their own decisions and carry them out in ways that are meaningful and culturally appropriate to them.
International Youth Day
International Youth Day is celebrated annually on 12 August to bring youth issues to the attention of the international community and celebrate the potential of youth as partners in today’s global society.
The Day gives an opportunity to celebrate and mainstream young peoples’ voices, actions, and initiatives, as well as their meaningful, universal, and equitable engagement. The UN General Assembly (UNGA) established the Day on 17…
13th International Conference on Sustainable Development
The 13th International Conference on Sustainable Development (ICSD) will be held on the theme, ‘Creating a Unified Foundation for Sustainable Development: Research, Practice, and Education’. The Conference aims to bring together individuals from research, policy, practice, and business to share ideas, present research fundings, and discuss professional issues relevant to sustainability science.
European Mobility Week
European Mobility Week is the European Commission’s flagship awareness-raising campaign on sustainable urban mobility. It promotes behavioural change in favor of active mobility, public transport, and other clean, intelligent transport solutions.
The main event takes place from 16 to 22 September each year, culminating in the popular Car-Free Day. Local authorities are encouraged to use this week to test innovative planning measures,…
World Cleanup Day
On 8 December 2023, the United Nations General Assembly, in its seventy-eighth session, unanimously adopted resolution 78/122 “World Cleanup Day”, which proclaims 20 September as World Cleanup Day.
The resolution invites all Member States, organizations of the United Nations system, other international and regional organizations, and other relevant stakeholders – including civil society, the private sector and academia – to observe…
World Maritime Day
The World Maritime Day theme for 2025 "Our Ocean, Our Obligation, Our Opportunity" reflects the ocean’s vital role in the world economy, with more than 80% of global trade transported by sea. The ocean is a source of jobs and food for millions of people, a home for countless marine species, and a regulator of the planet's climate, mitigating the impacts of climate change.
5th meeting of the UN Forum of Mayors
The 5th meeting of the UN Forum of Mayors, “Cities Shaping the Future”, will be held in-person at the Palais des Nations, in Geneva, on 6-7 October 2025. Mayors from around the world will come together to exchange good practice and to collaboratively draft a set of recommendations, emphasizing the critical role of cities and local actors in shaping a sustainable future.
World Architecture Day
Created by the UIA in 1985, World Architecture Day is celebrated annually on the first Monday of October coinciding with the UN-Habitat Global Observance of the World Habitat Day.
World Habitat Day
World Habitat Day is marked on the first Monday of October each year and is recognized by the United Nations to reflect on the state of towns and cities, and on the basic right of all to adequate shelter. The day is also intended to remind the world that everyone has the power and the responsibility to shape the future of towns and cities.
World Migratory Bird Day
World Migratory Bird Day 2025 will focus on the theme, ‘Creating Bird-friendly Cities and Communities’. The theme highlights the need for a healthy coexistence between birds and humans and the opportunities to create and adapt environments that support migratory bird populations across all communities, from cities to smaller towns and communities.
World Cities Day
World Cities Day brings Urban October to an end on 31 October each year and was first celebrated in 2014. As with World Habitat Day, a global observance is held in a different city each year and the day focuses on a specific theme.
Second World Summit for Social Development
The Second World Summit for Social Development would address the gaps and recommit to the Copenhagen Declaration on Social Development and Programme of Action and its implementation and give momentum towards implementing the 2030 Agenda.
UN Climate Change Conference (UNFCCC COP 30)
The 2025 UN Climate Change Conference (UNFCCC COP 30) will convene in November 2025 in Belém, Brazil.
World Toilet Day
World Toilet Day is celebrated annually on 19 November to inspire action to tackle the global sanitation crisis and help achieve SDG 6, which promises sanitation for all by 2030. To meet the SDG sanitation target, the world needs to work on average, five times faster.
Summit of the Future
The high-level event will bring together UN Member States, UN agencies, non-governmental organizations (NGOs), civil society organizations (CSOs), academic institutions, the private sector, and youth under the theme, ‘Summit of the Future: Multilateral Solutions for a Better Tomorrow’. The Summit aims to forge a new global consensus on what our future should look like, and what we can do today to secure it.
World Cleanup Day
World Cleanup Day is an annual global social action program aimed at combating the global mismanaged waste crisis, including the problem of marine debris.
12th International Conference on Sustainable Development
The 12th International Conference on Sustainable Development (ICSD) will be held on the theme, ‘Solutions for the Future’. The Conference aims to bring together individuals from research, policy, practice, and business in advance of the 2024 Summit of the Future to share practice solutions for achieving the SDGs at local and national levels.
Innovate4Cities Conference
To link cities, climate change science, and findings from the first Global Stocktake, the Global Covenant of Mayors for Climate and Energy (GCoM) and the United Nations Human Settlements Programme (UN-Habitat) have announced that the next Innovate4Cities Conference (I4C2024) is set to take place for the first time in Montreal, Canada from 10-12 September 2024.
79th Session of the UN General Assembly
The 79th session of the UN General Assembly (UNGA 79) will open on Tuesday, 10 September 2024. The first day of the high-level General Debate will be Tuesday, 24 September 2024.
Africa Urban Forum
The African Union Commission is organizing the first ever Africa Urban Forum to be held in Addis Ababa at the Adwa Memorial Museum from 4 to 6 September 2024.
The African Union Commission and its member-states established the Africa Urban Forum during the Fourth Ordinary Session of the Specialized Technical Committee on Public Service, Local Government, Urban Development and Decentralization (AU-STC.No.8) held in Cairo, Egypt in August…
Nairobi Convention COP 11
(Dates are tentative)
The 11th meeting of the Conference of Contracting Parties (COP11) to the Nairobi Convention for the Protection, Management and Development of the Marine and Coastal Environment of the Western Indian Ocean Region (Nairobi Convention) will convene in two main segments. A partners, experts, and national focal points meeting will convene for the first two days.
A heads of delegation meeting…
ECOSOC High-Level Segment
The High-level Segment (HLS) of the UN Economic and Social Council (ECOSOC) will take place in July 2024, during ECOSOC’s 2024 session. The Segment will include the three-day ministerial segment of the UN High-level Political Forum on Sustainable Development (HLPF).
The HLS convenes annually. It represents the culmination of ECOSOC’s annual cycle of work and convenes a diverse group of high-level representatives from government, the…
World Population Day
World Population Day is celebrated annually on 11 July to focus attention on the urgency and importance of population issues.
High-Level Political Forum
The High-Level Political Forum (HLPF) in 2024, without prejudice to the integrated, indivisible and interlinked nature of the Sustainable Development Goals, will review in-depth: Goal 1. End poverty in all its forms everywhere; Goal 2. End hunger, achieve food security and improved nutrition and promote sustainable agriculture; Goal 13. Take urgent action to combat climate change and its impacts; Goal 16. Promote peaceful and inclusive…
World Refugee Day
The year 2001 marked the 50th anniversary of the 1951 Convention Relating to the Status of Refugees. The UN General Assembly (UNGA) decided that 20 June would be celebrated as World Refugee Day from 2001 onwards (A/RES/55/76).
World Refugee Day honors the strength and courage of refugees and encourages public awareness and support of the refugees, people who have had to flee their homelands because of conflict or natural disaster. The…
Third UN Conference on LLDCs
The Third UN Conference on Landlocked Developing Countries (LLDCs) will explore innovative solutions to challenges faced by LLDCs and build meaningful, strategic partnerships to unlock the potential of LLDCs. The Conference will convene under the theme, ‘Driving Partnerships for Progress’.
G7 Leaders' Summit
The G7 Summit will be held in Borgo Egnazia, Puglia, from 13 to 15 June 2024. The event will be attended by the Heads of State and Government of the seven Member States, as well as the President of the European Council and the President of the European Commission representing the European Union.
World Environment Day
The UN celebrates World Environment Day annually on 5 June. The Day encourages worldwide awareness and action for the protection of the environment.
The UN Environment Programme (UNEP) annually organizes events for World Environment Day, and the Day is typically celebrated in over 100 countries.
Sustainable Energy for All Global Forum
The 2024 Sustainable Energy for All Global Forum will be held in Bridgetown, Barbados from 4-6 June, co-hosted by Sustainable Energy for All (SEforALL) and the Government of Barbados, led by Prime Minister Mia Amor Mottley.
The SEforALL Global Forum has become the landmark global gathering to drive faster, broader progress on universal access to sustainable energy, as called for by Sustainable Development Goal 7 (SDG7).