Can hacked gold turn legit?

Is there an amount of time you could wait for the hacked gold to be considered legit ?
or would it always be hacked .

It will always be considered hacked. There is no way to turn hacked gold legit. You can keep it secured for any amount of time but it will never change. The recommended amount of time that gold should be secured is about 2 months, but it will always be hacked.

As Soul said, hacking it is irreversible and it will always be that way no matter what.