Oops, it doesn't look like 'uggggh i need to go on a diet day' is a national day..

Other days

Appreciate Yaself A Lil Extra Day

Tulip Day

Tell A Fairytale Day

Nail Polish Day

Carpenters Day

One Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Lisp Day

Boba Day

Get Funky Day