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

Other days

kale

Kale Day
hiv awareness

Hiv Awareness Day
bow tie

Bow Tie Day
offer

Offer Day
kiss a ginger

Kiss A Ginger Day
unicorn

Unicorn Day
slime

Slime Day
boba

Boba Day
brow

Brow Day
hannah

Hannah Day