Oops, it doesn't look like 'niall horan made a snapchat day' is a national day..

Other days

ruby

Ruby Day
self care

Self Care Day
brow

Brow Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
comfy

Comfy Day
eat what you want

Eat What You Want Day
ormille

Ormille Day
artists

Artists Day
mean girls

Mean Girls Day
nae nae

Nae Nae Day