International Day for the Preservation of the Ozone Layer 2309

Thursday, 16 September 2309

Marks the signing of the Montreal Protocol and promotes protection of the ozone layer.

Also known as

World Ozone Day

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Frequently asked questions

When is International Day for the Preservation of the Ozone Layer 2309?: International Day for the Preservation of the Ozone Layer 2309 is on Thursday, 16 September 2309.
What day of the week is International Day for the Preservation of the Ozone Layer 2309?: It falls on Thursday.
How is International Day for the Preservation of the Ozone Layer calculated?: This event is observed every year on 16 September.