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

Other days

fiancee

Fiancee Day
lash

Lash Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
aloxolt

Aloxolt Day
me

Me Day
self care

Self Care Day
hoodie

Hoodie Day
my little pony

My Little Pony Day
polyamory

Polyamory Day