Oops, it doesn't look like 'convention presented a four day' is a national day..

Other days

latina equal pay

Latina Equal Pay Day
boy friend

Boy Friend Day
tell a fairytale

Tell A Fairytale Day
self care

Self Care Day
cursing

Cursing Day
boyfriend

Boyfriend Day
my little pony

My Little Pony Day
girl friend

Girl Friend Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
first love

First Love Day