Art After Hours is a gallery festival for night owls during which selected Vilnius city galleries, art institutions, and art spaces will open their doors to visitors until late in the evening and will organize additional events: meetings with artists and gallerists, tours of exhibitions, and performances.

The organizers of Art After Hours follow the example of foreign art fairs in Vienna, Paris, Berlin, and others, where large-scale parallel events are organized in addition to fairs, and local art galleries open their doors until later so that visitors could take part not only in art fairs but also in events taking place in the city.