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In Qt 4.7, there is the QDateTime::currentMSecsSinceEpoch() static function, which does exactly what you need, without any intermediary steps. Hence I'd recommend that for projects using Qt 4.7 or newer.
31 lip 2015 · You can use QDateTime class and convert the current time with the appropriate format: QDateTime::currentDateTime().toString("yyyy/MM/dd hh:mm:ss,zzz") where 'z' corresponds to miliseconds accuracy.
QDateTime::currentDateTime() returns a QDateTime that expresses the current date and time with respect to a specific time representation, such as local time (its default). QDateTime::currentDateTimeUtc() returns a QDateTime that expresses the current date and time with respect to UTC; it is equivalent to QDateTime::currentDateTime(QTimeZone::UTC).
A QTime object is typically created either by giving the number of hours, minutes, seconds, and milliseconds explicitly, or by using the static function currentTime (), which creates a QTime object that represents the system's local time.
The method systemTimeZoneId() returns the current system IANA time zone ID which on Unix-like systems will always be correct. On Windows this ID is translated from the Windows system ID using an internal translation table and the user's selected country.
18 paź 2023 · With the standard C++ time function, we get the Unix time. QDateTime dt; dt.setTime_t(t); out << dt.toString() << endl; The setTime_t function is used to convert the Unix time into the DateTime, which is formatted to human readable form. QDateTime cd = QDateTime::currentDateTime(); out << cd.toTime_t() << endl;
The Correct Approach for Time Zones in Qt Core: In Qt Core, you handle time zones with QDateTime objects using the Qt::TimeSpec parameter in constructors or factory methods like fromTime_t(). Here's a breakdown: Qt::LocalTime: Creates a QDateTime object representing the current date and time in the system's local time zone.
