Timer progressivo

public void cronometro(final JLabel label, boolean inicia) {          
      
        Thread t = new Thread() { 
        int hora = 0;
        int minuto = 0;
        int segundo = 0;
  
        @Override   
        public void run() {   
  
            label.setText(hora + ":" + minuto + ":" + segundo);
                        segundo++;
                        if (segundo == 60) {
                            segundo = 0;
                            minuto++;
                            if (minuto == 60) {
                                minuto = 0;
                                hora++;
                                if (hora == 60) {
                                    hora = 0;
                                }
                            }
                        } 
                try {   
                    Thread.sleep(1000);   
                } catch (InterruptedException ex) {   
                    Logger.getLogger(ServPing.class.getName()).log(Level.SEVERE, null, ex);   
                }   
            }
    };  
        
        if(inicia==true)
            {
             t.start(); 
            }
            else
                {
                if(inicia==false)
                    {
                    t.stop();    
                    }
                {
            }            
        }     
    }

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Timer;
import java.util.TimerTask;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class Cronometro extends JFrame {

	private static final long serialVersionUID = 1L;

	private JLabel label;
	private JButton startButton;
	private JButton pauseButton;

	private JPanel panel;

	private int secondsTotal = 0;
	private int seconds = 0;
	private int minuts = 0;
	private int hours = 0;
	private boolean paused = true;

	private Timer timer;
	private TimerTask task;

	public Cronometro() {
		super("Cronômetro");

		initForm();
		pack();
		setVisible(true);
		setLocationRelativeTo(null);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}

	private void initForm() {
		initComponents();

		panel.add(startButton, BorderLayout.WEST);
		panel.add(pauseButton, BorderLayout.CENTER);
		panel.add(label, BorderLayout.EAST);

		add(panel);

	}

	private void initComponents() {
		label = new JLabel("00:00:00");
		startButton = new JButton("Start");
		startButton.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				paused = false;
				updateCrono();
			}
		});
		pauseButton = new JButton("Pause");
		pauseButton.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				paused = true;

			}
		});

		panel = new JPanel(new BorderLayout());

		timer = new Timer();
		task = new TimerTask() {

			@Override
			public void run() {
				updateCrono();
			}
		};

		timer.schedule(task, 1000, 1000);

	}

	private void updateCrono() {
		if (!paused) {

			secondsTotal++;

			seconds = secondsTotal % 60;

			if (seconds == 0) {
				minuts++;
			}
			if (minuts == 60) {
				minuts = 0;
				hours++;
			}

			hours = hours % 24;

			String labelText = hours + ":" + minuts + ":" + seconds;
			label.setText(labelText);

		}
	}

	public static void main(String[] args) {
		new Cronometro();

	}

}

updateCrono();