Oops, it doesn't look like 'anthem will only be sung in sinhala at the independence day' is a national day..

Other days

Ride The Wind Day

Pampering Day

Tell A Fairytale Day

Appreciate Yaself A Lil Extra Day

Donate Your Hair Day

Offer Day

Pumpkin Day

China Day

Cuddle Up Day

Tell Ur Crush You Like Them Day