MVC EditorFor TimeSpan.Hours not binding

MVC EditorFor TimeSpan.Hours not binding

I have model with a TimeSpan (TimeWorked), I want to bind a text box to
the Hours and Minutes fields of the TimeSpan.
@Html.EditorFor(model => model.TimeWorked.Hours)
...
@Html.EditorFor(model => model.TimeWorked.Minutes)
But in the controller post method the values are not part of the posted
model.
How do I achieve this?