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

Other days

hoodie

Hoodie Day
singles

Singles Day
tulip

Tulip Day
gum

Gum Day
bonang

Bonang Day
my little pony

My Little Pony Day
reading

Reading Day
eat what you want

Eat What You Want Day
gallery

Gallery Day
lash

Lash Day