Oops, it doesn't look like 'universities demo day' is a national day..

Other days

youth

Youth Day
boba

Boba Day
brow

Brow Day
china

China Day
lumpy rug

Lumpy Rug Day
bow tie

Bow Tie Day
hoodie

Hoodie Day
bounce

Bounce Day
tell a fairytale

Tell A Fairytale Day
buddy

Buddy Day