[wp-hackers] Looking for a time-based content plugin

[Paul Menard]

Greetings all. Happy Monday.

So late tonight (2am Tuesday CST) I have to go in a client's  
MovableType setup and removed all references to a campaign which ends  
July 31. This will involve changes to the template for the home page  
and sidebar. Should take me about 1.5 hours.

So it got me thinking about my other clients who use WP and the drive  
to automate as much as possible. Is there some plugin for WP that  
would perform this action form me?  Meaning have some content  
automatically display depending on a date/time range?

Is anyone aware of something even close to this that I could extend  
for my own needs?

P-