Вывод времени на екран

include "TimerWindow.h"
#include <QtWidgets>
 
TimerWindow::TimerWindow(QWidget* parent)
    : QLCDNumber(parent)
{
    setSegmentStyle(Filled);
    QTimer* timer = new QTimer();
    timer->start(1000);
 
    setWindowTitle("Timer");
    resize(300, 100);
    connect(timer, SIGNAL(timeout()), SLOT(showTime()));
}
 
void TimerWindow::showTime()
 {
     QTime time = QTime::currentTime();
     QString text = time.toString("hh:mm:ss");
     if ((time.second() % 2) == 0)
         text[2] = ' ';
     display(text);
 }

#define TIMERWINDOW_H
 
#include <QLCDNumber>
 
class TimerWindow : public QLCDNumber
{
    Q_OBJECT
 
public:
    TimerWindow(QWidget* parent = 0);
private slots:
     void showTime();
};
 
#endif // TIMERWINDOW_H

#include "TimerWindow.h"
#include <QtWidgets>
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    TimerWindow timerWindow;
    timerWindow.show();
 
    return app.exec();
}

ui->lcdNumber->setNumDigits(8);

     QDateTime time = QDateTime::currentDateTime();
     QString text = time.toString("yyyy.MM.dd hh:mm:ss")