Oops, it doesn't look like 'best friend every friend you currently have day' is a national day..

Other days

Kale Day

Hiv Awareness Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Pumpkin Day

Embarrass Your Best Friend Day

Tulip Day

Lash Day

Nae Nae Day

Prosecco Day

Aloxolt Day