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

Other days

bonang

Bonang Day
law

Law Day
reading

Reading Day
first love

First Love Day
ask out your crush

Ask Out Your Crush Day
pick me

Pick Me Day
girl friend

Girl Friend Day
one

One Day
stud

Stud Day
fiancee

Fiancee Day