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

Other days

slime

Slime Day
cuddle up

Cuddle Up Day
kale

Kale Day
boyfriend

Boyfriend Day
boba

Boba Day
donate your hair

Donate Your Hair Day
camera

Camera Day
bonang

Bonang Day
prosecco

Prosecco Day
eat what you want

Eat What You Want Day