How to represent QDateTime data in QTableView in needed format?

[viulskiez]

Try to keep QDateTime data type while setting the data for editing purpose (Qt::EditRole), and set the data for displaying (Qt::DisplayRole) with converted type (QString).

Edit: disable smilies

[falconium]

QVariant QStandardItem::data ( int role = Qt::UserRole + 1 ) const [virtual]
Returns the item's data for the given role, or an invalid QVariant if there is no data for the role.
Note: The default implementation treats Qt::EditRole and Qt::DisplayRole as referring to the same data.

Does it mean QStandardItem must be inherited to a new class that separates edit and display roles?
How can I do that if it is the case?

Thank you!