Oops, it doesn't look like 'championship game one day' is a national day..

Other days

hoodie

Hoodie Day

tell ur crush you like them

Tell Ur Crush You Like Them Day

one

One Day

book

Book Day

coffee

Coffee Day

law

Law Day

lost sock memorial

Lost Sock Memorial Day

Emoji Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day

boba

Boba Day