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

Other days

youth

Youth Day
carpenters

Carpenters Day
brow

Brow Day
blanket fort

Blanket Fort Day
offer

Offer Day
bounce

Bounce Day
fiancee

Fiancee Day
donate your hair

Donate Your Hair Day
ride the wind

Ride The Wind Day
reading

Reading Day