public static void main(String[] args) throws Exception { JFrame f = new JFrame(); CalModel cm = new CalModel(TimeZone.getDefault(), true); JCalendar jc = new JCalendarDateHHMM(); jc.setModel(cm); f.getContentPane().add((javax.swing.JPanel) jc); f.setSize(400, 400); f.pack(); f.setVisible(true); }