since it starts with the current time i was surprised that it does not appear to update. it would be nice if the clock worked "like a real clock", changing to reflect the current time. of course, that's not what you want if someone enters a time, so you'd need to track whether that has happened (and perhaps provide some subtle feedback to indicate that it's not "ticking" - the best thing i can think of is that you flash the ":" between numbers if it's running as a clock, and leave it steady if the time has been altered).