How to get the CTimestampBehavior in controller?!

Hi,

The model is filling the create/update date of record by behavior function of CTimestampBehavior. Now, in the controller the user may upload image, so I need to create a folder named as the upload image date, then upload the image into that folder.

So, I need to get the exact timestamp of the behavior date, how can I do that ?

Thanks,