I have this method:

   private Date setTimeOnDate(Date date, int hours, int minutes) {
        System.out.println("start: " + date);
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.set(Calendar.HOUR_OF_DAY, hours);
        calendar.set(Calendar.MINUTE, minutes);
        Date time = calendar.getTime();
        System.out.println("end: " + time);
        return time;
    }

it prints two different date formatting. At line System.out.println("start: " + date); is shows 2024-07-10 14:19:00.0.
But at line System.out.println("end: " + time); it shows Wed Jul 10 16:40:00 AST 2024.

Why is that?