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 on Sustainable Development
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…
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 Progress Through Partnerships’.
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…
World Humanitarian Day
World Humanitarian Day is commemorated every year on 19 August to pay tribute to humanitarian workers killed and injured in the course of their work, and to honor all aid and health workers who continue to provide life-saving support and protection to people most in need. The Day highlights the importance, effectiveness, and positive impact of humanitarian work.
80th Session of the UN General Assembly (UNGA 80)
The 80th session of the UN General Assembly (UNGA 80) will open on Tuesday, 9 September 2025. The first day of the high-level General Debate will be Tuesday, 23 September 2025.
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.
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.
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 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.
WSIS+20 High-level Event
The World Summit on the Information Society (WSIS) is an existing multistakeholder United Nations (UN) process on digital governance and cooperation with a vision of fostering people-centered, inclusive, and development-oriented information and knowledge societies.
17th BRICS Summit
The 17th BRICS Summit will be hosted by Brazil. As the Chair of BRICS, Brazil is focusing on the theme, ‘Strengthening Global South Cooperation for More Inclusive and Sustainable Governance’.
Initially comprised of Brazil, the Russian Federation, India, China, and South Africa, the recently expanded alliance now also includes Egypt, Ethiopia, Indonesia, Iran, Saudi Arabia, and the United Arab Emirates (UAE). The BRICS countries convene…
The Fourth International Conference on Financing for Development
The Fourth International Conference on Financing for Development (FfD) will take place from June 30 to 3 July 2025 in Spain. The conference will result both in an intergovernmentally negotiated and agreed outcome and in summaries of the plenary meetings and other deliberations of the Conference, to be included in the report of the Conference.
World Day to Combat Desertification and Drought
World Day to Combat Desertification and Drought is observed annually on 17 June to promote public awareness of international efforts to combat desertification.
The Day offers a chance to recognize that land degradation neutrality (LDN), a world where human activity has a neutral or positive impact on land, is achievable through problem solving, strong community involvement, and cooperation at all levels. Under the UN Convention to…
G7 Summit
As the Group of 7 (G7) Presidency in 2025, Canada will host the G7 Summit in Kananaskis, Alberta, in June. Canada intends to work with G7 partners on common priorities, including building economies that benefit everyone, fighting climate change, and managing rapidly evolving technologies.
The G7 Summit is an international forum held annually for the leaders of the G7 member States of Canada, France, Germany, Italy, Japan, the UK, and…
Third UN Ocean Conference (UNOC)
The Third UN Ocean Conference (UNOC) will convene in Nice, France, in June 2025. The Governments of France and Costa Rica will co-chair the Conference, which aims to generate transformative action and provide solutions the ocean needs, supported by ocean science and funding for SDG 14 (life below water).
World Oceans Day
World Oceans Day provides an opportunity to honor, help protect and conserve the Ocean. The UN marks the Day each year on 8 June through an annual event which provides an opportunity to celebrate the importance of the Ocean and to better understand how to interact with it in a sustainable manner.
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 Day underscores the importance of urgent action to halt biodiversity loss, reduce greenhouse gas (GHG) emissions, air pollution, and plastic waste and restore the environment.
World Bicycle Day
Acknowledging the uniqueness, longevity and versatility of the bicycle, which has been in use for two centuries, and that it is a simple, affordable, reliable, clean and environmentally fit sustainable means of transportation, fostering environmental stewardship and health, the General Assembly decided to declare 3 June World Bicycle Day.
The 8th Session of the Global Platform for Disaster Risk Reduction
The eighth session of the Global Platform for Disaster Risk Reduction (DRR) will focus on the overall theme, ‘Everyday Counts, Act for Resilience Today,’ to underscore the urgency of accelerating progress in the implementation of the goals of the Sendai Framework for DRR.
Resumed Second Session of the UN-Habitat Assembly
The UN Human Settlements Programme (UN-Habitat) will resume its Second Session to consider the Strategic Plan for UN-Habitat for 2026-2029. The Second Session is taking place under the theme, ‘A Sustainable Urban Future Through Inclusive and Effective Multilateralism: Achieving the Sustainable Development Goals in Times of Global Crises’.
The UN General Assembly (UNGA) established the UN-Habitat Assembly in 2018 upon dissolution of the…
Fourth session of the Preparatory Committee
The fourth session of the Preparatory Committee (PrepComm) for the Fourth International Conference on Financing for Development (FfD4) will convene in two parts. The first part of the fourth meeting of the FfD PrepComm will continue to make the organizational, procedural, and substantive preparations for the Conference. The second part of the fourth meeting of the FfD PrepComm is expected to convene in mid-June with the aim of reaching…
International Mother Earth Day
International Mother Earth Day aims to raise global public awareness of the challenges to the well-being of the planet and all the life it supports. The Day also recognizes a collective responsibility, as called for in the 1992 Rio Declaration, to promote harmony with nature and the Earth, to achieve a just balance among the economic, social, and environmental needs of the present and future generations of humanity.
81st session of the Economic and Social Commission for Asia and the Pacific (ESCAP)
The eighty-first session of the Economic and Social Commission for Asia and the Pacific (ESCAP) will be held from 21 to 25 April 2025 at the United Nations Conference Centre in Bangkok, guided by the theme "Regional cooperation for resilient and sustainable urban development in Asia and the Pacific".
ECOSOC Youth Forum
The UN Economic and Social Council’s (ECOSOC) 2024 Youth Forum will take place from 15-17 April 2025.
The Youth Forum is an annual initiative of the ECOSOC President, which has evolved into a key platform where young people can contribute to policy discussions at the UN through their collective ideas, solutions, and innovations.