International Day for the Preservation of the Ozone Layer 2027

Thursday, 16 September 2027

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 2027?: International Day for the Preservation of the Ozone Layer 2027 is on Thursday, 16 September 2027.
What day of the week is International Day for the Preservation of the Ozone Layer 2027?: 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.