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

Other days

artists

Artists Day
frozen yogurt

Frozen Yogurt Day
promposal

Promposal Day
ormille

Ormille Day
bow tie

Bow Tie Day
book

Book Day
carpenters

Carpenters Day
cuddle up

Cuddle Up Day
special education

Special Education Day
ruby

Ruby Day