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

Other days

healing

Healing Day
book

Book Day
bow tie

Bow Tie Day
prosecco

Prosecco Day
stud

Stud Day
kiss a ginger

Kiss A Ginger Day
get funky

Get Funky Day
girl friend

Girl Friend Day
my little pony

My Little Pony Day
slime

Slime Day