Events

The United Nations General Assembly proclaimed 21 March the International Day of Forests (IDF) in 2012. The Day celebrates and raises awareness of the importance of all types of forests. On each International Day of Forests, countries are encouraged to undertake local, national and international efforts to organize activities involving forests and trees, such as tree planting campaigns. In 2025, forests and foods is the theme for the day, celebrating the crucial roles of forests in food security, nutrition and livelihoods.

World Water Day, held on 22 March every year since 1993, is an annual United Nations Observance focusing on the importance of freshwater. World Water Day celebrates water and raises awareness of the 2.2 billion people living without access to safe water. It is about taking action to tackle the global water crisis. A core focus of World Water Day is to support the achievement of Sustainable Development Goal 6: water and sanitation for all by 2030.

Every 23 March, the World Meteorological Organization commemorates the coming into force of the Convention establishing the World Meteorological Organization on 23 March 1950. It showcases the essential contribution of National Meteorological and Hydrological Services to the safety and wellbeing of society and is celebrated with activities around the world.

Piano Day, an annual worldwide event founded by a group of like-minded people, takes place on the 88th day of the year because of the number of keys on the instrument being celebrated. Established in 2015, it is now well known across the globe. Every year it provokes special concerts, onstage and online, as well as radio shows, podcasts, and playlists.