Weeeeeellll, I found this here under include/smarty/libs/function.html_select_date.php
(Sorry, had the wrong section a couple of minutes ago)

Code:
    }

    if ($display_years) {
    	$field_separator_count++;
        if (null !== $field_array){
            $year_name = $field_array . '[' . $prefix . 'Year]';
        } else {
            $year_name = $prefix . 'Year';
        }
That's not all of it, but it looks to me as though there might be something in there that could be changed perhaps?
In particular this line here, looks like it could have the word Year translated because that sure looks an awful lot like a visible reference.

Code:
            $year_name = $prefix . 'Year';
Problem is that I can't even be 100% certain if it'll actually have an effect on the portal at all since smartycode is used so widely, often without being cleaned up real well from one app to the next. But hey, I'll give it a spin shortly after doing some backups 'n stuff. Will report on the results. Later ...

.


Okay, I'm back, went ahead and tried editing the Day, Month, and Year function.
Didn't do any good though, not in the admin section, nor the portal itself.

But if smarty has anything to do with it, I still think that those are the files since there are several of them for date, time, etc. functions. I just don't know enough about that code to be able to figure out exactly where the changes would have to be made ... if that would indeed make a difference in the first place.

Sorry, I'm giving it up for today. My eyeballs feel like they're in the back of my head ... :)

.