title: Error using [Today] in Sharepoint filter
body: <p>I'm having issues creating a filtered view in a SharePoint list.  The filter should display any results with a Created date from "this week".  In my case, "this week" is from the previous Saturday through the upcoming Friday.</p>
  
  <p>I get the error message "Filter value is not in a supported date format." when trying to create the filtered view.</p>
  
  <p>Here are my filters:</p>
  
  <p>Show the items when column</p>
  
  <p><code>Created</code>
  <code>Is Greater than or Equal to</code>
  <code>[Today]-WEEKDAY([Today])</code></p>
  
  <p>and when column</p>
  
  <p><code>Created</code>
  <code>Is Less than or Equal to</code>
  <code>[Today]-WEEKDAY([Today])+6</code></p>
  
  <p>What am I missing? And is it as simple as I'm guessing it probably is?</p>