Oops, it doesn't look like 'clean your lens day' is a national day..

Other days

kiss a ginger

Kiss A Ginger Day
cat girl

Cat Girl Day
frozen yogurt

Frozen Yogurt Day
self care

Self Care Day
believe

Believe Day
china

China Day
slime

Slime Day
ruby

Ruby Day
nae nae

Nae Nae Day
youth

Youth Day