December 15: what holidays Ukraine and the world celebrate on a war day.

According to ТСН: December 15, 2025 – Monday. The 1390th day of the war in Ukraine.

What holiday is today

Today, December 15, the church calendar commemorates The Day of Remembrance of Saint Eleutherius the Hieromartyr. Saint Eleutherius, a bishop who lived in the second half of the 2nd century, was renowned for his zealous preaching of Christianity and diligent fulfillment of spiritual duties. For his faithfulness to his beliefs, he endured numerous tortures and became a martyr.

Also, December 15 is The Day of Court Workers of Ukraine. This holiday was established in 1997 when the Verkhovna Rada (Ukrainian Parliament) adopted a corresponding decree, emphasizing the importance of the judicial system for society and the state. The date was not chosen by chance: on December 15, 1917, the Central Council adopted a law on the establishment of the General Court, which was the first step in forming the Ukrainian judicial system.

On December 15, Ukraine and the world celebrate The Day of the Establishment of the United Nations Environment Programme. This program was founded during the UN Conference on Sustainable Development in Stockholm in 1972. UNEP became the first specialized agency of the United Nations dealing with global environmental issues, uniting the efforts of countries to preserve the environment.

These festive dates remind us of the importance of both spiritual and legal values in our lives, as well as humanity's responsibility for preserving the planet. Each of these days symbolizes a contribution to the development of society and ensuring sustainable ecological balance.