Comment 2 for bug 1231558

Thanks Anthony.

Current approach is to avoid use qmlscene by user, and to use predefined bash script instead.
It is already done for Calculator app:
http://bazaar.launchpad.net/~ubuntu-calculator-dev/ubuntu-calculator-app/trunk/view/head:/app/ubuntu-calculator-app.in

You could just run calculator with command:

 $ ubuntu-calculator-app

or with additional parameters
 $ ubuntu-calculator-app -qt5

So it is bug in clock and calendar application itself, and not in ubuntu-ui-toolkit (Ubuntu).