Oops, it doesn't look like 'i love you i love you day' is a national day..

Other days

promposal

Promposal Day

eat what you want

Eat What You Want Day

carpenters

Carpenters Day

Emoji Day

hot chocolate

Hot Chocolate Day

lash

Lash Day

bow tie

Bow Tie Day

healing

Healing Day

donate your hair

Donate Your Hair Day

ride the wind

Ride The Wind Day