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

Other days

law

Law Day
pampering

Pampering Day
lash

Lash Day
self care

Self Care Day
ormille

Ormille Day
cursing

Cursing Day
tulip

Tulip Day
embarrass your best friend

Embarrass Your Best Friend Day
bow tie

Bow Tie Day
artists

Artists Day