#include <QtCore>
#include <iostream>

int main(int argc, char* argv[]) {
        QString feb29 = "Feb 29 09:10";
        QString format = "MMM dd hh:mm";

        QDateTime dt = QLocale::c().toDateTime(feb29, format);

        std::cout << "valid = " << dt.isValid() << std::endl;

        return 0;
}