And when we change to daylight saving it ends up being 12am to 8am I believe, it doesn't know the change and it doesn't get external signals to change. I have heard of them being remotely controlled, but I am pretty certain mine isn't.
The analog ones (like mine here in Qld) are turned on and off by control tones superimposed on the supply, so the utility can gradually power up a neighbourhood's off-peak water heaters and EV chargers etc.. Not sure about the new ones.