title: DateTime.TryParseExact returns false for MM/dd/yyyy hh:mm
body: <p>Following code returns <code>false</code> for me and I just can't figure out what am I doing wrong.</p>
  
  <pre><code>var localDateTimeString = "03/24/2016 21:05"; // subject.Substring(0, 16);
  
  DateTime localDateTime;
  if (!DateTime.TryParseExact(
      localDateTimeString,
      "MM/dd/yyyy hh:mm",
      CultureInfo.InvariantCulture,
      DateTimeStyles.None,
      out localDateTime)) return false;
  </code></pre>
  
  <p>Format is fixed 16 char string, always 2 digits for days, month, minutes and hour. 4 digits for year.</p>
  
  <p>But this code returns false, how can I fix this?</p>