Oops, it doesn't look like 'flag on railway engines on independence day' is a national day..

Other days

Hot Chocolate Day

Tell Ur Crush You Like Them Day

Bubble Bath Day

Ride The Wind Day

Ponytail Day

Prosecco Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Lash Day

Lumpy Rug Day

Get Funky Day