Java convert date from UTC timezone

TImeZoneTest.java

try {

    String inputTime = "2020-06-19T04:18:37.636Z";
    SimpleDateFormat inputDateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
    inputDateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
    Date date = inputDateFormat.parse(inputTime);

    SimpleDateFormat outputDateFormat = new SimpleDateFormat("HH:mm:ss");
    outputDateFormat.setTimeZone(TimeZone.getTimeZone("Asia/Colombo"));
    String outputTime = outputDateFormat.format(date);
    System.out.println(outputTime);

} catch (Exception ex) {
    ex.printStackTrace();
}