Oops, it doesn't look like 'Yannick Alexis day' is a national day..

Other days

pampering

Pampering Day
unicorn

Unicorn Day
boba

Boba Day
bounce

Bounce Day
ride the wind

Ride The Wind Day
one

One Day
kiss a ginger

Kiss A Ginger Day
nae nae

Nae Nae Day
slime

Slime Day
youth

Youth Day