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

Other days

hoodie

Hoodie Day
ponytail

Ponytail Day
my little pony

My Little Pony Day
eat what you want

Eat What You Want Day
self care

Self Care Day
reading

Reading Day
self appreciation

Self Appreciation Day
chocolate milkshake

Chocolate Milkshake Day
buddy

Buddy Day
azonto is acceptable

Azonto Is Acceptable Day