September 21, 2023, is the United Nations International Day of Peace. "Each year the International Day of Peace is observed around the world on 21 September. The UN General Assembly has declared this as a day devoted to strengthening the ideals of peace, through observing 24 hours of non-violence and cease-fire."
The 2023 theme is Actions for Peace: Our Ambition for the #GlobalGoals. "It is a call to action that recognizes our individual and collective responsibility to foster peace. Fostering peace contributes to the realization of the Sustainable Development Goals (SDGs) and achieving the Sustainable Development Goals will create a culture of peace for all.