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#include <QCoreApplication>

#include <QNetworkAccessManager>

#include <QNetworkReply>

#include <QNetworkRequest>

#include <QDateTime>

#include <QTimer>

#include <QTextStream>

void fetchNetworkTime() {

    QNetworkAccessManager *manager = new QNetworkAccessManager();

    QObject::connect(manager, &QNetworkAccessManager::finished, [](QNetworkReply* reply) {

        if (reply->error() == QNetworkReply::NoError) {

            QString data = reply->readAll();

            // 假设获取到的时间数据格式为 "yyyy-MM-ddTHH:mm:ssZ"

            QDateTime dateTime = QDateTime::fromString(data, Qt::ISODate);

            QTime time = dateTime.time();

            QDate date = dateTime.date();

            QTextStream(stdout) << "Network Time: " << time.toString() << "\n";

            QTextStream(stdout) << "Network Date: " << date.toString() << "\n";

        } else {

            QTextStream(stdout) << "Error: " << reply->errorString() << "\n";

        }

        reply->deleteLater();

    });

    QNetworkRequest request(QUrl("http://worldtimeapi.org/api/timezone/Etc/UTC"));

    manager->get(request);

}

int main(int argc, char *argv[]) {

    QCoreApplication a(argc, argv);

    QTimer::singleShot(0, &fetchNetworkTime);

    return a.exec();

}