How do you determine swf file info from within itself

Does anyone know how to determine swf publish date/time stamp from within the swf?

I have a template fla used to build apps (in AS3) and would like to know some info about when it was published.

I initially thought it would be in the loaderInfo but it doesn’t have the date/time stamp of when it was published (or at least not that I could find)

any help is much appreciated.

Thanks in advance