- International Day for the Preservation of the Ozone Layer
- International Day for the Remembrance of the Slave Trade and Its Abolition
- International Day for the Right to the Truth concerning Gross Human Rights Violations and for the Dignity of Victims
- International Day for the Total Elimination of Nuclear Weapons
- International Day for Tolerance
- International Day of Charity
- International Day of Cooperatives
- International Day of Democracy
- International Day of Families
- International Day of Forests and the Tree
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