Oops, it doesn't look like 'mall on any regular day' is a national day..

Other days

coffee

Coffee Day
ruby

Ruby Day
bounce

Bounce Day
ormille

Ormille Day
hannah

Hannah Day
buddy

Buddy Day
azonto is acceptable

Azonto Is Acceptable Day
lisp

Lisp Day
youth

Youth Day
lumpy rug

Lumpy Rug Day