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

Other days

tulip

Tulip Day
me

Me Day
carpenters

Carpenters Day
emoji

Emoji Day
my little pony

My Little Pony Day
self appreciation

Self Appreciation Day
blanket fort

Blanket Fort Day
first love

First Love Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
ride the wind

Ride The Wind Day