Here is what it says in the Lockbackground.html not sure what to change though to add AM/PM? It says remove /* but it was removed already by default and it doesn't display it. Any help would be appreciated.
<!-- Remove the /* from under this line to display am or pm after the 12 hours clock -->
// Choose either "AM" or "PM" as appropriate
var timeOfDay = ( currentHours < 12 ) ? "AM" : "PM";
// Convert the hours component to 12-hour format if needed
currentHours = ( currentHours > 12 ) ? currentHours - 12 : currentHours;
// Convert an hours component of "0" to "12"
currentHours = ( currentHours == 0 ) ? 12 : currentHours;
// Compose the string for display
var currentTimeString = timeOfDay;
// Update the time display
document.getElementById("ampm").firstChild.nodeValue = currentTimeString;