SSRS SharePoint integration mode fails to account for Australian formatting. This results in US format dates and issues when utilising date time picker in the report parameters. The report is sent to the correct region and I've applied SQL 2012 SP1 CU2 with no luck.
I've got a manually work around for the parameters which involves editing the "C:\Program Files\Common Files\microsoft shared\Web Server Extensions\15\TEMPLATE\LAYOUTS\ReportServer\RSViewerPage.aspx" file and applying the following update <%@ Page language="C#" Codebehind="RSViewerPage.aspx.cs" AutoEventWireup="false" Inherits="Microsoft.ReportingServices.SharePoint.UI.RSViewerPage,Microsoft.ReportingServices.SharePoint.UI.ServerPages,Version=126.96.36.199,Culture=neutral,PublicKeyToken=89845dcd8080cc91" Culture="en-AU" UICulture="en-AU" %>
But other areas such as subscription scheduler cannot be patched.