title: How often will uptimeMillis() reset and will it affect Handler.postAtTime
body: <p>The description for the method <a href="http://developer.android.com/reference/android/os/SystemClock.html#uptimeMillis%28%29" rel="nofollow">uptimeMillis</a> says:  </p>
  
  <blockquote>
    <p>Returns milliseconds since boot, not
    counting time spent in deep sleep.
    <strong>Note:</strong> This value may get reset
    occasionally (before it would
    otherwise wrap around).</p>
  </blockquote>
  
  <p>How often might this happen and (more importantly) will it affect runnables that should be executed by <a href="http://developer.android.com/reference/android/os/Handler.html#postAtTime%28java.lang.Runnable,%20long%29" rel="nofollow">Handler.postAtTime</a>?</p>