#include#include #include int main(int argc, char *argv[]) { QDateTime now = QDateTime::currentDateTime(); QString formatted = now.toString("dd/MM/yyyy HH:mm:ss"); qDebug() << formatted; return 0; }
#includeThis code creates two QDateTime objects, one representing the start time and another representing the end time. It then calculates the difference between the two times using the msecsTo method and prints it to the console. Package library: Qt Overall, QDateTime is a useful class in Qt for working with time and date values. It provides many convenient methods for formatting, manipulating and comparing dateTime objects.#include int main(int argc, char *argv[]) { QDateTime start = QDateTime::currentDateTime(); // Some time passes... QDateTime end = QDateTime::currentDateTime(); qint64 diff = start.msecsTo(end); qDebug() << "Time elapsed:" << diff << "milliseconds"; return 0; }