I think the confusion is that the OP’s on screen clock was referring to the clock you could display on the HDR-1000/1000S front panel display by not using low power sby. Of course the HDR-1100S has no front panel display. And I guess Repassac is correct the Sony on screen clock was generated by the TV not the Humax box.
I imagine my 2017 post refers to the lack of a display on the latest box.
The Foxsat-HDR is similar it has a front panel display that can display the time in sby.