In order to change the global setting of Date Time Format from webconfig, you will have to include the globalization tag with culture being the country and language you want to set . For complete list of culture values please follow this link https://www.basicdatepicker.com/samples/cultureinfo.aspx
<system.web>
<globalization culture="en-GB"/>
dc2885c8-2cfd-48ad-b87f-48a6d5f2d365|0|.0|96d5b379-7e1d-4dac-a6ba-1e50db561b04
ASP.NET, ASP.NET MVC, webconfig