Datetime format in CMS edit mode

Hi Team,

I have created "Datetime" property in one of my page type and i want to display "dd/mm/yyyy" to the editors but it is always showing in "mm/dd/yyy" format. Below are possible configuration changes i have done but still not working.

1) Updated culture attribute in web.config "en-AU"

2) Enabled only one language(i.e. en-AU) in admin => manage website language settings

3) Updated personal language to "English" under My Settings => Display Options tab

Can you please let me know if anyother configuration changes required to resolve this issue?

Thanks,

Suresh B