Hello Andrea,
Yes it is possible to do it using the CERN theme along with the CERN Display Formats module. However the current version of the module supports only the Horizontal Boxes display and the Accordion display.
The next version of the module which will be deployed in a couple of weeks will include the dates carousel and the countdown. If it is urgent I can provide a work-around but using the module is for sure a cleaner solution.
Kostas