title: Calculate days remaining to a birthday?
body: <p>I have a DateTime object with a person's birthday. I created this object using the person's year, month and day of birth, in the following way:</p>
  
  <pre><code>DateTime date = new DateTime(year, month, day);
  </code></pre>
  
  <p>I would like to know how many days are remaining before this person's next birthday. What is the best way to do so in C# (I'm new to the language)?</p>