@EventHandler
    public void onExplode(final EntityExplodeEvent e) {
        final SimpleDateFormat df = new SimpleDateFormat("HH");
        final String time = df.format(System.currentTimeMillis());
        time.contains("20");
        e.setCancelled(true);
        time.contains("21");
        e.setCancelled(true);
        time.contains("22");
        e.setCancelled(true);
        if (time.contains("23")) {
            e.setCancelled(true);
        }
        if (time.contains("00")) {
            e.setCancelled(true);
        }
        if (time.contains("01")) {
            e.setCancelled(true);
        }
        if (time.contains("02")) {
            e.setCancelled(true);
        }
        if (time.contains("03")) {
            e.setCancelled(true);
        }
        if (time.contains("04")) {
            e.setCancelled(true);
        }
        if (time.contains("05")) {
            e.setCancelled(true);
        }
        if (time.contains("06")) {
            e.setCancelled(true);
        }
        if (time.contains("07")) {
            e.setCancelled(true);
        }
        if (time.contains("10")) {
            e.setCancelled(true);
        }
        if (time.contains("11")) {
            e.setCancelled(true);
        }
        if (time.contains("12")) {
            e.setCancelled(true);
        }
        if (time.contains("13")) {
            e.setCancelled(true);
        }
        if (time.contains("14")) {
            e.setCancelled(true);
        }
    }
    
    @EventHandler
    public void onPlace(final BlockPlaceEvent e) {
        if (e.getBlock().getType() != Material.TNT) {
            return;
        }
        final SimpleDateFormat df = new SimpleDateFormat("HH");
        final String time = df.format(System.currentTimeMillis());
        if (time.contains("20")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("21")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("22")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("23")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("00")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("01")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("02")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("03")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("04")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("05")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("06")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("07")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("08")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("09")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("10")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("11")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("12")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
        if (time.contains("13")) {
            e.setCancelled(true);
            e.getPlayer().sendMessage("§4TNT dziala w godzinach 14:00 - 22:00");
        }
    }
}