Every year since 1977, ICOM has organised International Museum Day (IMD), which represents a unique moment for the international museum community. On this day, participating museums plan creative events and activities related to the International Museum Day theme, engage with their public and highlight the importance of the role of museums as institutions that serve society and its development.

The objective of International Museum Day is to raise awareness on the fact that, “museums are an important means of cultural exchange, enrichment of cultures and development of mutual understanding, cooperation and peace among peoples”. Organised each year on and around 18 May, the events and activities planned to celebrate International Museum Day can last a day, a weekend or a whole week.

Participation in International Museum Day is growing among museums all over the world. In 2021, the celebration amplified its impact by the development of hybrid activities all around the world, reaching 89 million Internet users through social media, news articles, blog posts, podcasts and more!