Oops, it doesn't look like 'best friend post a picture with people you hung out with once day' is a national day..

Other days

Get Funky Day

Appreciate Yaself A Lil Extra Day

Ormille Day

Stud Day

Nail Polish Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Prosecco Day

Kiss A Brunette Day

Donate Your Hair Day

Hannah Day