Oops, it doesn't look like 'find out which of your coworkers is a bigot day' is a national day..

Other days

Polyamory Day

Lost Sock Memorial Day

Martini Day

Latina Equal Pay Day

My Little Pony Day

Nae Nae Day

Stress Awareness Day

Embarrass Your Best Friend Day

Carpenters Day

Lumpy Rug Day