1. Have these lines in your code:

   QDate date = QDate::currentDate();
   QDateTime dateTime = QDateTime::currentDateTime();
   QTime time = QTime::currentTime();
   

2. Debug the code and stop at a breakpoint behind these lines.
3. See the contents of the Locals and Expressions view.
   You'll see something like this:

   		date	2457574	QDate
   			jd	2457574	int64
   		dateTime	1467654300097/0/7200/(null)/28	QDateTime
   			d	class QSharedDataPointer<>	QSharedDataPointer<QDateTimePrivate>
   		time	63900099	QTime
   			mds	63900099	int
   

   This is not helpful at all.

The debugger should display these time related values in a human-readable format.