public SimpleDate(long timeMillis) {
            this(Calendar.getInstance().setTimeInMillis(timeMillis));//Obviously this doesn't work because setTimeInMillis is a void method
        }

        public SimpleDate(Calendar calendar) {
            this.year = calendar.get(Calendar.YEAR);
            this.month = calendar.get(Calendar.MONTH) + 1;
            this.day = calendar.get(Calendar.DAY_OF_MONTH);

            this.hour = calendar.get(Calendar.HOUR_OF_DAY);
            this.minute = calendar.get(Calendar.MINUTE);
            this.second = calendar.get(Calendar.SECOND);
        }