Oops, it doesn't look like 'showing up late to work with coffee in hand day' is a national day..

Other days

Polyamory Day

Boyfriend Day

One Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Pumpkin Day

Appreciate Yaself A Lil Extra Day

Kiss A Ginger Day

Comfy Day

Cuddle Up Day

Aloxolt Day