Server CurrentTimestamp

For historical purposes, all the table in the database contain fields DT_CREATE and DT_UPDATE corresponding to creation date and last update date of the record. 
Is there any way to have those 2 fields filled by the Server current timestamp rather Client current timestamp. 

Thanks for your answers. 

You should just manually modify your database structure to include a default value or trigger that fills such value upon update and/or insert. 

Thanks for your answer. I will go in that direction.

At this stage I was using a Session Listener where I had all the logic regarding current user and current date time for all the objects (inherited from a base class containing this info) but I will change for the date part.