How get list all time zone?

[Mikeeeeee]

Hi.
How get list all time zone with name and time?
It is:

QTimeZone::availableTimeZoneIds();

return name time zone without time.

[Christian Ehrlicher]

So hard to read the documentation?

[ODБOï]

hi @Mikeeeeee
you can use this method https://doc.qt.io/qt-5/qdatetime.html#QDateTime-4

[Mikeeeeee]

@Christian-Ehrlicher said in How get list all time zone?:

read the documentation?

Very funny. In the documentation, I found only one suitable method and that one works poorly.

[Mikeeeeee]

@LeLev said in How get list all time zone?:

method https://doc.qt.io/qt-5/qdatetime.html#QDateTime-4

this method will not help to get a list of all time zones.

[JonB]

@Mikeeeeee said in How get list all time zone?:

Very funny. In the documentation, I found only one suitable method and that one works poorly.

What "works poorly"? I see https://doc.qt.io/qt-5/qtimezone.html#availableTimeZoneIds to get a list of the ids, https://doc.qt.io/qt-5/qtimezone.html#QTimeZone-1 to create a QTimeZone off each of the available ids, and from the instance there is https://doc.qt.io/qt-5/qtimezone.html#displayName for the name and some other method for whatever you mean by "time", e,.g, https://doc.qt.io/qt-5/qtimezone.html#offsetFromUtc. So what does not work or is not in the documentation?

[ODБOï]

@Mikeeeeee said in How get list all time zone?:

this method will not help

    QList<QByteArray> timeZoneIds  = QTimeZone::availableTimeZoneIds();
    
    QDateTime localDateTime (QDate::currentDate(), QTime::currentTime());
   
    for (int i = 0; i<timeZoneIds.length(); i++){
            QDateTime dt =  localDateTime.toTimeZone(QTimeZone(timeZoneIds.at(i)));
            qDebug()<<dt;
    }

[Mikeeeeee]

@JonB thank!
The language for the output of time zone names depends on the language of the operating system?

it is code works:

    listTimeZome = QTimeZone::availableTimeZoneIds();
    for(int i = 0; i < listTimeZome.size(); i++)
    {
        QTimeZone timeZone(listTimeZome[i]);
        QString displayNameTimeZone = timeZone.displayName(QTimeZone::StandardTime);
        int utc = timeZone.offsetFromUtc(QDateTime::currentDateTime());
        qDebug()<< "name" << displayNameTimeZone;
        qDebug()<< "utc" << utc;
    }

[JonB]

@Mikeeeeee said in How get list all time zone?:

The language for the output of time zone names depends on the language of the operating system?

That I do not know. I do not see a method offering to translate these names into locale/language.