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Revision as of 13:53, 13 June 2012 by hamishwillee (Talk | contribs)

Get current Date and Time in Qt

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This code example shows how to get current date and time using Qt C++ and QML. Note that the code example shows how to use Qt C++ APIs, while only code snippets are provided for QML.

Article Metadata
Code ExampleTested with
Devices(s): Nokia 5800 XpressMusic
Compatibility
Platform(s): S60 3rd Edition, FP1, FP2
S60 5th Edition
Symbian
Platform Security
Signing Required: Self-Signed
Capabilities: None
Article
Keywords: QDateTime::currentDateTime(), QDate::currentDate(), QTime::currentTime()
Created: savaj (11 Jun 2009)
Updated: hamishwillee (20 Feb 2012)
Last edited: hamishwillee (13 Jun 2012)

Contents

QML

The current date/time can be obtained in QML using Javascript’s date:

var today = new Date() // contains current date and time

QML provides the Qt.formatDate() and Qt.formatDateTime() methods for formatting this value. You can also dynamically declare dates using the QML date basic type.

An example displaying the current date in YYMMDD format might look like:

Rectangle {
width: 200
height: 200
Text {
anchors.centerIn: parent
text: Qt.formatDateTime(new Date(), "yyMMdd")
}
}

Qt C++ API

The main Qt C++ methods for getting the current date and time are:

Headers required

#include <QDateTime>

Source

SystemTime::SystemTime(QWidget *parent)
: QMainWindow(parent)
{
ui.setupUi(this);
setWindowTitle("System Time");
ui.statusbar->showMessage("Showing system time");
 
//get current date
QDate date = QDate::currentDate();
QString dateString = date.toString();
ui.label->setText("Date: " + dateString);
 
//get current time
QTime time = QTime::currentTime();
QString timeString = time.toString();
ui.label_2->setText("Time: " + timeString);
 
//get current date and time
QDateTime dateTime = QDateTime::currentDateTime();
QString dateTimeString = dateTime.toString();
ui.label_3->setText("Date and Time: " + dateTimeString);
}


Screenshot

The code snippet is expected to show current date and time of device.

SystemTime.JPG


Code Example

  • The Code Example will show current date and time on screen and example is tested on Nokia 5800 XpressMusic.
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