It's coming from the operating system. The idea of "lockscreen image" is to let an app place an image behind the time, date, and notifications (the one "detailed" item and the five "iconic" items at the bottom). Apps that set the lockscreen image know (or should know) the rules about how much space they can use before running into the items that are fixed in place. Your app should have prevented you from adding so much or should have clipped their content to avoid the overlap problem shown in your picture.However somewhere in my lock-screen is coming date&clock and i do not find a place to get that off. Does anybody know where is it coming?