This is based on Nedim answer, but with tweak:
- Go to Control Panel
- Click Region and you will see a screen with 3 tabs (Formats, Location and Administrative)
- Click Formats and choose the settings you prefer
- Click Additional settings
- Click Date tab
- Change Short date to desired format and confirm dialog
- Click Location and choose the settings you prefer
- Click Administrative tab. For "Welcome screen and new user accounts", click copy settings. From the new window, click both checkboxes for 'welcome screen and system accounts' and 'new user accounts' (if you skip this step, you will still see the issue because IIS uses system account)
- Approve all changes for Region by clicking Ok on all open windows
- Open Command prompt, write iisreset and enter
- If you still don't see the changes try logoff and logon
In my case the default format for my country was wrong and I couldn't pick proper format except choosing someting else with desired format. But there was web.config with globalization set to my local culture which had precedense.