**World Ozone Day**, officially known as the **International Day for the Preservation of the Ozone Layer**, is celebrated annually on **September 16th**.

World Ozone Day, also known as International Day for the Preservation of the Ozone Layer.

The UN General Assembly proclaimed 16 September to be the International Day for the ozone layer.

Do you know?? Preservation of the Ozone Layer, commemorating the date when the Montreal Protocol.