International Day of Clean Energy
The International Day of Clean Energy on 26 January was declared by the General Assembly (resolution A/77/327) as a call to raise awareness and mobilize action for a just and inclusive transition to clean energy for the benefit of people and the planet.
World Economic Forum Annual Meeting
The World Economic Forum (WEF) Annual Meeting 2026 will consider key global and regional challenges, including stimulating growth to improve living standards, responding to geopolitical shocks, and stewarding a just, inclusive energy transition.
51st Ordinary Session of the PRC
The 51st Ordinary Session of the Permanent Representatives’ Committee (PRC) of the African Union (AU) took place in Addis Ababa, Ethiopia, from January 12 to January 30, 2026.
International Migrants Day
International Migrants Day is celebrated annually on 18 December to shine a spotlight on the contributions of migrants around the world and to highlight the increasingly complex environment in which migration occurs.
UN Environment Assembly (UNEA-7)
The seventh meeting of the UN Environment Assembly (UNEA-7) will take place from 8-12 December 2025 at the UN Environment Programme (UNEP) Headquarters in Nairobi, Kenya. The meeting’s theme is theme, ‘Advancing Sustainable Solutions for a Resilient Planet’.
World AIDS Day
On 1 December WHO joins partners and communities to commemorate World AIDS Day 2025, under the theme "Overcoming disruption, transforming the AIDS response", calling for sustained political leadership, international cooperation, and human-rights-centred approaches to end AIDS by 2030.
World Sustainable Transport Day
World Sustainable Transport Day is celebrated annually on 26 November. The UN General Assembly (UNGA) declared the Day in recognition of the important role of safe, affordable, accessible, and sustainable transport systems for all in supporting sustainable economic growth, improving the social welfare of people, and enhancing international cooperation and trade among countries.
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.
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 Tsunami Awareness Day
In December 2015, the UN General Assembly designated 5 November as World Tsunami Awareness Day.
In 2021, World Tsunami Awareness Day will promote target (f) of the "Sendai Seven Campaign" which aims to “Substantially enhance international cooperation to developing countries through adequate and sustainable support to complement their national actions for implementation of the present Framework by 2030.”
Second World Summit for Social Development
The World Social Summit 2025, officially titled the Second World Summit for Social Development (WSSD2), is a significant global event aimed at fostering inclusive social development and addressing key challenges to achieve well-being for all. It serves as a platform for governments, civil society organizations, private sector actors, and other stakeholders to collaborate on creating policies and strategies that promote…
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.
6th Global WOPs Congress
The Global Water Operators’ Partnerships (WOPs) Congress is organized by UN-Habitat through the Global Water Operators’ Partnerships Alliance (GWOPA).
The Congress is the foremost gathering within the UN system for water and sanitation operators. It brings together operators, local and national governments, development partners, and stakeholders to exchange knowledge, inspire action, mobilise support for WOPs, and strengthen capacities…
The Open-ended Intergovernmental Expert Working Group on Adequate Housing for All
The Open-ended Intergovernmental Expert Working Group on Adequate Housing for All of the United Nations Human Settlements Programme will hold its second session (OEWG-H2) from 22 to 23 October 2025. The session will be held at the UN-Habitat Headquarters in Nairobi, Kenya.
World Food Day
World Food Day promotes awareness of hunger and action for the future of food, people, and the planet. The Day aims to raise awareness on the importance of ensuring a world where everyone has access to diverse, nutritious, affordable, and safe foods.
The Food and Agriculture Organization of the UN (FAO) designated 16 October as World Food Day in 1979. The Day takes place annually on 16 October.