Oops, it doesn't look like 'best friends joker day' is a national day..

Other days

Chocolate Milkshake Day

Kiss A Brunette Day

Get Funky Day

Offer Day

Cat Girl Day

Prescription Drug Take Back Day

Kale Day

Aloxolt Day

Appreciate Yaself A Lil Extra Day

African Immigrant And Refugee Hiv And Hep Awareness Day