title: How to check IF expiration date occured
body: <p>I have access only to .NET, and I have this situation. At creating an game (or any object for that matter), I set expiration date (or any date, that's not really important).
  Date is set at some point in future. Now What I want to do is to check if that date occurred. And this should happen completely automatically. Without user interactions.</p>
  
  <p>My question is.. ? Is that possible? And where to start?</p>
  
  <p>EDIT:</p>
  
  <p>I have date stored in database, and i want to periodically check if that date actually occurred. I guess asking server every second to check date stored in DB is not most optimal solution.</p>