This is just a suggestion, as I don't see anything about this in the 4.2 feature development schedules.
Since there was all the bad press on the KDE clock, and it's relative unimportance on release 4.0, I suppose any further development was dropped. Also in consideration of this I resolved not to mention it until some of the other more critical features were further along in development.
The computer clock, because of internal synchronizations, probably needs to be 24 hour, but the screen user visual digital clock doesn't. So is it possible to have a 12 hour AM/PM visual digital clock selection, as well as the 24 hour? With the AM/PM designation displayed?
Regards, Tom McLernon