* Convert xsd:date and xsd:time types to UTC dates and times, as QDate and QTime don't hold timezone info
* Convert xsd:date and xsd:time types to UTC dates and times, as QDate
and QTime don't hold timezone info

vranki/libqtsparql,vranki/libqtsparql,vranki/libqtsparql,vranki/libqtsparql