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

Other days

book

Book Day
cat girl

Cat Girl Day
kiss a brunette

Kiss A Brunette Day
healing

Healing Day
kale

Kale Day
lumpy rug

Lumpy Rug Day
bonang

Bonang Day
ruby

Ruby Day
bow tie

Bow Tie Day
hannah

Hannah Day