Schedule Post to Stop

*bump*
Looking for the exact same thing, except for the schedule part.
I have am working on a biography site for a client, and he has one-time jobs in his CV as well as jobs that lasted for months.
Example: in a “Event Moderation” category there are all kinds of events that he moderated. Here my theme puts the date behind the title, all is fine.
But he also worked as a tv-moderator from 2002-2005. I want to put this time period behind the title.

Should I use a custom field? Or is there an elegant plugin?

Okay, I did it with a custom field.
I call it “endet” (which means “ends” in german ?? )

$endet = implode(get_post_custom_values('endet'));
	if ($endet){$endet=" - ".$endet;}

This pulls the variable from the post and converts it to a string, because it is an array initially.
Then, where you output the time, add the “endet” variable:
<?php the_time('j. F Y'); ?><?php echo $endet; ?>

That’s all I needed, hope you can use it too.