Oops, it doesn't look like 'exams could be rescheduled only if psi forecast for the next day' is a national day..

Other days

Lost Sock Memorial Day

Bow Tie Day

My Little Pony Day

Tell A Fairytale Day

Tell Ur Crush You Like Them Day

Chocolate Milkshake Day

One Day

Lisp Day

Ormille Day

Self Appreciation Day