Oops, it doesn't look like 'cathedral on his first full day' is a national day..

Other days

boba

Boba Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
me

Me Day
lost sock memorial

Lost Sock Memorial Day
eat what you want

Eat What You Want Day
slime

Slime Day
kiss a ginger

Kiss A Ginger Day
polyamory

Polyamory Day
my little pony

My Little Pony Day
boy friend

Boy Friend Day