I have a string ("2021-11-05T22:33:10Z") which represents UTC time. I need to get the equivalent cst time("2021-11-05T16:33:10Z"). i have the below code but it returns time as 2021-11-05T17:33:10Z. Why is an hour getting add to the final time?

public class MyClass {
    public static void main(String args[]) throws ParseException {
      String busDate = "2021-11-05T22:33:10Z";
      SimpleDateFormat currentFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
      currentFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
      Date utcTime = currentFormat.parse(busDate);
      
      System.out.println(utcTime); //Fri Nov 05 22:33:10 GMT 2021
      
      SimpleDateFormat updateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
      updateFormat.setTimeZone(TimeZone.getTimeZone("America/Chicago"));
      String formattedDateTime = updateFormat.format(utcTime);
      System.out.println(formattedDateTime); //2021-11-05T17:33:10Z
   
    }
}