Question: How Can I Select a Named Object in Keynote with AppleScript?

If you use my trick, order doesn't matter at all (!) because I requested that you set up the initial template to contain a string in each hyperlink that contains the name of the date or month. And that trick should work either with tiffle's solution or mine.

To answer the original question, using Script Debugger 8 to look at the AppleScript dictionary of Keynote in the Explorer tab, it seems that Keynote provides no AppleScript access to object names. (UI scripting notwithstanding) Bad Apple!