what's the differnce between "hard working" and "hardly working"?

For me. Hard working is doing a lot of hard work. Hardly working means that's you're practically doing nothing. Someone who is hard-working is devoting time and energy to performing the required tasks, is diligent. Someone who is hardly working is barely or scarcely employed; either their poor work habits have resulted in their seldom actually having a job or they are "employed"

Suriya Chankan 4EN 044