Oops, it doesn't look like 'assembly that ideally should have saved the day' is a national day..

Other days

carpenters

Carpenters Day
tulip

Tulip Day
reading

Reading Day
kiss a ginger

Kiss A Ginger Day
blanket fort

Blanket Fort Day
gallery

Gallery Day
azonto is acceptable

Azonto Is Acceptable Day
boy friend

Boy Friend Day
fiancee

Fiancee Day
kiss a brunette

Kiss A Brunette Day