The camera is brand new, appears to function correctly except for this problem. It is the first thing to be done after putting the batteries in , according to the instruction manual supplied with the camera. It is possible to set the language, the geographic location and the date and time format, but then it is not possible to insert the current date and time. I have tried removing and replacing the batteries (supplied with the camera) to no effect.
Yes, have set location and language - unable to fill in current date and time.