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

Other days

tulip

Tulip Day
my little pony

My Little Pony Day
offer

Offer Day
camera

Camera Day
carpenters

Carpenters Day
healing

Healing Day
self care

Self Care Day
donate your hair

Donate Your Hair Day
kale

Kale Day
nail polish

Nail Polish Day