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

Other days

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
polyamory

Polyamory Day
hiv awareness

Hiv Awareness Day
pumpkin

Pumpkin Day
special education

Special Education Day
self appreciation

Self Appreciation Day
blanket fort

Blanket Fort Day
ride the wind

Ride The Wind Day
cursing

Cursing Day
gum

Gum Day