""If you build a house, you start with one brick. To build peace, let’s start with one day."" — Jeremy Gilley MBE, Peace One Day Founder Since 1999, Peace One Day has driven the creation, growth, and global engagement of Peace Day on 21 September. Few recurring calendar dates have achieved the same global resonance as Peace Day. Year after year, data shows this is the day when more people are talking about “peace” than at any other time. The result is a measurable reduction in violence and death, alongside a rise in acts of kindness, reconciliation, and community development worldwide. Today, Peace Day represents one of humanity’s greatest opportunities to harness the power of global community—a tangible step toward the sustainable, peaceful future we all seek. This impact is the result of a remarkable 25-year journey led by Peace One Day.