The International Day for Biodiversity (IDB) is celebrated on 22 May annually:

• to commemorate the adoption of the text of the Convention on Biological Diversity (CBD) on 22 May 1992;
• to provide an opportunity to foster wide support for the implementation of the Convention, its Protocols and related action frameworks.

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The theme of the 2025 edition: "Harmony with Nature and Sustainable Development" 

The IDB 2025 campaign seeks to focus the world’s attention on the linkages between the 2030 Agenda and its Sustainable Development Goals (SDGs) and the Goals and Targets of the Kunming-Montreal Global Biodiversity Framework (KMGBF) as two universal agendas that must be pursued in tandem in the spirit of the recently adopted Pact for the future.