I think you are wanting opAssign not opBinary.Also you made a mistake, since its a struct you don't want to new it when you construct and return it.```d return new Time(secos / 3600, (secos % 3600) / 60, secos % 60); ``` Would be a ``Time*`` not ``Time`` which is what you returned.
And shouldn't an `opAssign` be `void` anyways? Doubt there's many people writing stuff like `auto c = (a = b);`, where `a` is a `struct`/`class`.