Oops, it doesn't look like 'cat oatmeal hermit day' is a national day..

Other days

kale

Kale Day
boyfriend

Boyfriend Day
pampering

Pampering Day
tell a fairytale

Tell A Fairytale Day
slime

Slime Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
gallery

Gallery Day
ask out your crush

Ask Out Your Crush Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
kiss a brunette

Kiss A Brunette Day