Set Creation Date

Is it possible to add a creation date after a record has been created?

I've created a web page for our Marketing departement for a festival. Now, when the festival is over, they want the creation time of a few records. 
If I add the CurrTime() function, then the field remains empty. Is there another possibility to get the creation time?
Hi Nick,

You can get the system time with CurrDateTime() and CurrTime() functions. If the database attribute is empty is either due to a bug in the platform or due to your logic not assigning the value properly.

Can you share a sample eSpace where you show how you're trying to update the records?

Kind regards,
Ivo Gonçalves