#include <QDebug>
#include <QElapsedTimer>
QElapsedTimer eTimer;

#ifdef Q_OS_WIN
#include <windows.h> // for Sleep
#endif

int main()
{

    eTimer.restart();
#ifdef Q_OS_WIN
    Sleep(5000);//operations to measure
#endif
    qDebug() << " it tooks " << eTimer.elapsed() << "ms";

    return 0;
}