Oops, it doesn't look like 'eat a pizza during lunch with your favorite coworker day' is a national day..

Other days

Reading Day

Prosecco Day

Hannah Day

Cuddle Up Day

Carpenters Day

Comfy Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Slime Day

Tell Ur Crush You Like Them Day

Lumpy Rug Day