Oops, it doesn't look like 'war memorial all lit up for anzac day' is a national day..

Other days

unicorn

Unicorn Day
boyfriend

Boyfriend Day
hiv awareness

Hiv Awareness Day
polyamory

Polyamory Day
comfy

Comfy Day
hoodie

Hoodie Day
lost sock memorial

Lost Sock Memorial Day
mean girls

Mean Girls Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
latina equal pay

Latina Equal Pay Day