Android - getTimeZone returning date

Question

My command returns in System only the hours, but when it is posted in the database displays the time and date.

I’d like you to return only the hours, which is wrong?

 Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("GMT-3:00"));
    Date currentLocalTime = cal.getTime();
    DateFormat date = new SimpleDateFormat("HH:mm");
    // you can get seconds by adding  "...:ss" to it
    date.setTimeZone(TimeZone.getTimeZone("GMT-3:00"));
  final  String localTime = date.format(currentLocalTime);

            Hours = localTime;


  System.out.println(localTime);

Exit:

I/System.Oct: 09:54

Bank post ..

  postDataParams.put("hora_anun", Hours);