title: Data structure for storing recurring events?
body: <p>I'm looking for a data structure pattern for storing recurring events, but everything I came up with would result in a high number of special case handling or user input and data retrieval are overly complex. (I get the distinct feeling, that I haven't understand the problem domain well enough to do this.)</p>
  
  <p>How can I store Outlook-style recurring events?</p>
  
  <ul>
  <li>Every day at 8am</li>
  <li>Every first tuesday in a month</li>
  <li>Every December 1st for three years</li>
  <li>Every two hours for a week</li>
  <li>...</li>
  </ul>