Oops, it doesn't look like 'flags day' is a national day..

Other days

self care

Self Care Day
kiss a ginger

Kiss A Ginger Day
special education

Special Education Day
ormille

Ormille Day
youth

Youth Day
ponytail

Ponytail Day
nae nae

Nae Nae Day
one

One Day
boy friend

Boy Friend Day
artists

Artists Day