#include <QCoreApplication>
#include <QDateTime>
#include <QTimeZone>
#include <QDebug>
int main(int argc, char *argv[]) {
    QCoreApplication app(argc, argv);
    QTimeZone timeZone("Europe/Paris");
    QDateTime dateTime = QDateTime::currentDateTime().toTimeZone(timeZone);
    qDebug() << "Current time in Paris:" << dateTime.toString();
    return app.exec();
}

#include <QDateTime>
#include <QDebug>
int main() {
    // 創(chuàng)建一個(gè) QDateTime 對象，設(shè)定一個(gè)特定的日期和時(shí)間
    QDateTime dateTime(QDate(2024, 4, 18), QTime(12, 30, 0));  // 2024年4月18日 12:30:00
    // 轉(zhuǎn)換為時(shí)間戳（秒）
    qint64 timestamp = dateTime.toSecsSinceEpoch();
    qDebug() << "Unix timestamp in seconds:" << timestamp;
    return 0;
}

#include <QCoreApplication>
#include <QDBusConnection>
#include <QDBusMessage>
#include <QDebug>
int main(int argc, char *argv[])
{
    QCoreApplication app(argc, argv);
    // 連接到系統(tǒng)的session bus
    QDBusConnection bus = QDBusConnection::systemBus();
    if (!bus.isConnected()) {
        qWarning() << "Failed to connect to system bus.";
        return 1;
    }
    // 設(shè)置要調(diào)用的接口和方法
    QString service = "org.freedesktop.timedate1";
    QString path = "/org/freedesktop/timedate1";
    QString iface = "org.freedesktop.timedate1";
    QString method = "SetTime";
    // 獲取當(dāng)前系統(tǒng)時(shí)間作為參數(shù)
    QDateTime currentDateTime = QDateTime::currentDateTime();
    qlonglong timestamp = currentDateTime.toSecsSinceEpoch() * 1000000; // 轉(zhuǎn)換為微秒
    // 構(gòu)造DBus消息
    QDBusMessage message = QDBusMessage::createMethodCall(service, path, iface, method);
    message << timestamp << true; // 參數(shù)為時(shí)間戳和是否UTC時(shí)間
    // 調(diào)用DBus接口
    QDBusMessage reply = bus.call(message);
    if (reply.type() == QDBusMessage::ReplyMessage) {
        qDebug() << "Hardware time set successfully.";
    } else {
        qWarning() << "Failed to set hardware time:" << reply.errorMessage();
    }
    return app.exec();
}