code: @Implementation
    protected static boolean setCurrentTimeMillis(long millis) {
      if (currentTimeMillis > millis) {
        return false;
      }
  
      currentTimeMillis = millis;
      for (Listener listener : listeners) {
        listener.clockUpdated(currentTimeMillis);
      }
      return true;
    }
docs: Sets the current wall time.
  
  <p>Currently does not perform any permission checks.
  
  @return false if specified time is less than current time.