title: How do I url encode a date in objective-c
body: <p>I need to <strong>url encode a date parameter</strong> so I can send it to the api.</p>
  
  <p>For example if I have a date <code>2013-08-01 00:00:00 +0000</code>, I need to send this through <code>2013-08-01+00%3a00%3a00+%2b0000</code>.</p>
  
  <p>How can I achieve it? </p>