Embedding Build Time/Date

Is there a way to automatically embed the compile time/date into a
Delphi application?  I'm imagining that there might be a set of CONSTs
defined by the compiler similar to a C compiler's #define.

I could read the modification time of the file, but that would change
if someone started monkeying around with a file editor.  I could also write
it into the version resource, but that's not automatic.

Thanks for any suggestions,

- Eric Zager