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

Other days

azonto is acceptable

Azonto Is Acceptable Day
coffee

Coffee Day
comfy

Comfy Day
blanket fort

Blanket Fort Day
book

Book Day
ormille

Ormille Day
ruby

Ruby Day
youth

Youth Day
nae nae

Nae Nae Day
bow tie

Bow Tie Day