Date Format

Hi All,

In my report my parameter is string type.I want display day name for that.So i did like this.

WeekdayName(DayOfWeek(date({?trans_date})))

Initially I got an error like Bad time format.But after that i am getting result which is wrong.

I am getting different day name.

Actually here the transaction date is 05/01 2013 which is Saturday.But i am getting wednesday.

Please help.