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Observance Rule

World Ozone Day Observance Rule

Fixed Gregorian-calendar rule for World Ozone Day: 16 September every year.

Facts
Kind
Gregorian Date 1
Month Number
9 1
Day Number
16 1
Observance Note
Marks the 1987 signing of the Montreal Protocol. 1
Connections

Timing Rule For

World Ozone Day, Holidays
Sources
1. International Day for the Preservation of the Ozone Layer (United Nations)
United Nations
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