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

Other days

cursing

Cursing Day
comfy

Comfy Day
bonang

Bonang Day
hiv awareness

Hiv Awareness Day
lost sock memorial

Lost Sock Memorial Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
me

Me Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
buddy

Buddy Day
self appreciation

Self Appreciation Day