class TimeThread extends Thread {
    String city;
    String belt;

    public TimeThread(String city, String belt) {
        this.city = city;
        this.belt = belt;
    }

    @Override
    public void run() {
        for (; ; ) {
            String s = Calendar.getInstance(TimeZone.getTimeZone("GMT" + belt)).getTime().toString();
            int i = s.indexOf(":");
            System.out.println(city + ": " + s.substring(i - 2, i + 6));
            try {
                sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}