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

Other days

kale

Kale Day
pick me

Pick Me Day
believe

Believe Day
cursing

Cursing Day
eat what you want

Eat What You Want Day
unicorn

Unicorn Day
me

Me Day
donate your hair

Donate Your Hair Day
hoodie

Hoodie Day
tulip

Tulip Day