Oops, it doesn't look like 'media one guy left one party is the only important thing the whole day' is a national day..

Other days

Lash Day

Bounce Day

Boba Day

Mean Girls Day

Polyamory Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Lost Sock Memorial Day

Cuddle Up Day

Unicorn Day

Eat What You Want Day