title: Delphi problem with users using Arabic/Hijri calendar
body: <p>Some of my Arabic users are reporting problems back to me with my application giving errors.</p>
  
  <p>Common for them seem to be they are using Hijri calendar and TDateTimePicker control causing problems (but quite possibly it is the entire TDateTime and RTL that has problems, I am not sure)</p>
  
  <p>The Hijri Calendar has a different year start/end which is not well suited for my application. (AFAIK, Hijri first became available in Windows7.)</p>
  
  <p>I have problem reproducing the error because 
  1) I can't read Arabic making it much harder
  2) I can only pick Hijri when Windows is set to Arabic (otherwise it is not a visible option)</p>
  
  <p>Anyone here with the same problems? I Use Delphi 2010</p>
  
  <p>Can I force my application into using standard calendar? (as solution) or can I force Windows to Hijri calendar on English Windows? (for testing)</p>