Annual event since 2000 arranged at the end of June/beginning of July when alumni are invited back to Clare to attend special lectures, concerts, garden tours and for general reminisicing. The Archivist arranged a display in Old Court for each event from 2003-2010; in 2008 a Literary Festival was held instead of the Open Day and then in 2009 an Open Day was again held, but this time arranged mainly in the new building, Lerner Court.
The Alumni Day was renamed Gala Day in 2013.