Oops, it doesn't look like 'punters feel the heat as the sun shines on opening day' is a national day..

Other days

My Little Pony Day

Reading Day

Tell Ur Crush You Like Them Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Artists Day

Ruby Day

Tulip Day

Polyamory Day

Aloxolt Day

Lumpy Rug Day