Oops, it doesn't look like 'team head coach yeng guiao on day' is a national day..

Other days

boy friend

Boy Friend Day
chocolate milkshake

Chocolate Milkshake Day
prosecco

Prosecco Day
polyamory

Polyamory Day
me

Me Day
artists

Artists Day
embarrass your best friend

Embarrass Your Best Friend Day
bounce

Bounce Day
frozen yogurt

Frozen Yogurt Day
raise awerness of zeus

Raise Awerness Of Zeus Day