Oops, it doesn't look like 'use this emoji day' is a national day..

Other days

boyfriend

Boyfriend Day

ride the wind

Ride The Wind Day

get funky

Get Funky Day

nae nae

Nae Nae Day

book

Book Day

Emoji Day

lost sock memorial

Lost Sock Memorial Day

kale

Kale Day

china

China Day

my little pony

My Little Pony Day