Oops, it doesn't look like 'association of husbands and boyfriends have declared a day' is a national day..

Other days

Embarrass Your Best Friend Day

Healing Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Get Funky Day

Donate Your Hair Day

Pampering Day

Slime Day

Azonto Is Acceptable Day

Mean Girls Day

Boy Friend Day