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

Other days

one

One Day
ride the wind

Ride The Wind Day
eat what you want

Eat What You Want Day
pampering

Pampering Day
cursing

Cursing Day
martini

Martini Day
bow tie

Bow Tie Day
boba

Boba Day
offer

Offer Day
bounce

Bounce Day