Oops, it doesn't look like 'start seeing monarchs start seeing monarchs day' is a national day..

Other days

Hot Chocolate Day

Polyamory Day

Embarrass Your Best Friend Day

Believe Day

Law Day

Hoodie Day

Pampering Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Pumpkin Day

Tell Ur Crush You Like Them Day