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

Other days

bow tie

Bow Tie Day
martini

Martini Day
gum

Gum Day
donate your hair

Donate Your Hair Day
healing

Healing Day
bonang

Bonang Day
ride the wind

Ride The Wind Day
cursing

Cursing Day
boy friend

Boy Friend Day
bounce

Bounce Day