International Day of Peace

History & origins

International Day of Peace is listed in this site's 2026 calendar for September 21. Informal "national days" are often promoted by communities, trade groups, and brands; origins and official proclamations vary by country and year. Promote peace and unity around the world on International Day of Peace! This United Nations observance encourages all nations and peoples to honor a cessation of hostilities and to commemorate peace through education and public awareness. Because many such observances are cultural or promotional rather than statutory, treat dates as a planning guide and confirm local events separately.

Why it matters

Observing International Day of Peace gives people a shared anchor to explore international themes—peace, unity, September, international, cooperation—and to coordinate learning, gatherings, or giving around that focus. Promote peace and unity around the world on International Day of Peace! This United Nations observance encourages all nations and peoples to honor a cessation of hostilities and to commemorate peace through education and public awareness. Join the global movement for peace, understanding, and cooperation among all people.

How to celebrate

Participate in peace-building activities in your community. Learn about conflict resolution and peaceful communication. Support organizations that promote peace and human rights. Practice meditation or mindfulness for inner peace. Share messages of peace and unity on social media.

Facts

• The International Day of Peace was established by the UN in 1981
• The Peace Bell at UN Headquarters is rung each year on this day
• The day promotes 24 hours of non-violence and ceasefire
• Each year has a specific theme related to peace-building
• The dove with an olive branch is a universal symbol of peace

Upcoming dates

• Monday, September 21, 2026
• Tuesday, September 21, 2027
• Thursday, September 21, 2028
• Friday, September 21, 2029
• Saturday, September 21, 2030