International Days September 16 2025 (United Nations)
The following is an overview of the days and the corresponding celebration declared by the United Nations that apply to Tuesday, 2025-09-16:
International Day for the Preservation of the Ozone Layer:
In 1994, the General Assembly proclaimed, in its resolution 49/114, September 16 as the International Day for the Preservation of the Ozone Layer, commemorating the day in 1987 where the protocol of substances that deplete the ozone layer was signed in Montreal.
Content last updated on 2016-08-23T15:26:00Z