title: ExtJS : Submit Date in Separate Format
body: <p>I'm using ExtJS v4.0.</p>
  
  <p>Maintaining date format between client and server side is really confusing.</p>
  
  <p>Users want their own input formats, but the server usually requires the submission to be one standard format.</p>
  
  <p>It should be a built in implementation in ExtJS but it's not.</p>
  
  <p>I have read some solutions regarding to this issue but they only try to solve DateField formatting (by creating special DateField plugin or extending SubmitAction).</p>
  
  <p>I'm looking for a global solution to format all dates which can be submitted (grid/store writer, form/datefield, etc).</p>
  
  <p>So, dates may have custom display format according to locale but they will be submitted in one standard format (e.g. yyyy-mm-dd).</p>
  
  <p>Any suggestion for this problem?</p>
  
  <p>Thank you very much.</p>