title: Difference between UniversalSortableDateTimePattern and SortableDateTimePattern
body: <p>I see there are two types of sortable datetime patterns i can format my strings on...</p>
  
  <ol>
  <li>SortableDateTimePattern outputs a value with a T in the middle between date and time</li>
  <li>UniversalSortableDateTimePattern outputs a value with a Z in the end after the time</li>
  </ol>
  
  <p>What are the implications of each in terms of interprocess communication such as data interchange in JSON, XML or tabular data.</p>
  
  <p>Is any of the two by any chance adjusted to UTC automatically? (Seems not at first look)</p>
  
  <p>I've read the poor level of documentation available on MSDN regarding the two, sadly they offer no insight on this question...</p>