title: Calculate 14 days sequence order
body: <p>Can anyone please help me, how do I calculate fortnightly (14 days) logic using C#?, for a example 14 days start following sequence order on February </p>
  
  <ul>
  <li>Monday start date 8 Feb (next 22 Feb, 7 March, 21 March etc..)</li>
  <li>Thursday start date 11 February (next 25 Feb, 10 March, 24 March etc..)</li>
  <li>Friday start date 12 February (next 26 Feb, 11 March, 25 March etc..) </li>
  </ul>
  
  <p>My logic is not working for the 14 days day display, because 15 February will come 14 days add, it’ll display “First14days” date 29 February 2016, it is a wrong.</p>
  
  <p>This is C# logic</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="false" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>Day.Days value are Monday, Thursday, Friday etc..
  foreach (var Day in day)
  { 
      Example Day.Days = Monday
      Int 14days = (((int)Enum.Parse(typeof(DayOfWeek), Day.Days) - (int)today.DayOfWeek + 14) % 7);
      DateTime   First14days = today.AddDays(14days);                                    
  }  </code></pre>
  </div>
  </div>
  
   My output should be</p>
  
  <p><a href="https://i.stack.imgur.com/GoS8p.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/GoS8p.jpg" alt="My output should be "></a>    </p>