Oops, it doesn't look like 'weather service has issued an excessive heat watch for this labor day' is a national day..

Other days

Kiss A Ginger Day

Hot Chocolate Day

Azonto Is Acceptable Day

Special Education Day

Latina Equal Pay Day

Cursing Day

My Little Pony Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Kale Day

Gum Day