title: Changing the SSRS date picker format to DD/MM/YYYY
body: <p>I have seen this issue posted a few times but there does not appear to be a solution for what I am seeing. I have a paginated SSRS report that requires a date input from the drop-down calendar. Upon entering, say, January 21st 2020, the UI is then displaying the date chosen as 1/21/2020, <a href="https://i.stack.imgur.com/Pgms0.png" rel="nofollow noreferrer">for example here.</a> I need it to be 21/01/2020. Some points of note:<br><br>
  * all location settings for both the report server and the client browser are set to English (United Kingdom) and all date format settings are set to dd/mm/yyyy within the Windows settings on both the report server and client machine. All client browser language settings are English-UK in both IE and Chrome<br>
  * the variable is a DateTime data type<br>
  * this is a paginated SSRS report being displayed on a Power BI host server<br>
  * this is affecting all reports on this server<br>
  * the date field is not necessarily returned in the report, so converting the data is not applicable here.<br>
  * PBI version 15, SQL Server 2016<br><br>
  I have seen responses talking about expressing the field into the correct format, eg <code>=CDate(Fields!BirthDate.Value)</code> or <code>=FormatDateTime(Fields!BirthDate.Value, DateFormat.ShortDate)</code> however this does not appear to change anything (when it doesn't error).</p>
  
  <p>I'm at a total loss as to where this Americanization of the date is coming from. Any thoughts?</p>