Hijri Calendar Issue

Dear all,

i tried to turn on the preferred calendar in user options ,  and change the preferred calendar in user options to Hijri, issue here appear when user try to choose the date from the calendar error appear says that date format is not correct

as below

and also if user tried to type the date in hijri format it successfully converts it to Gergorian one but issue here it dose dose not appear in correct date at the calendar when trying to modify it from the calendar form example (6/8/2013 means in hijri 28/9/1434), the real case it shows as 18/11/1317 which is not correct date 

ERROR like the below image 

so please if any one knows how to fix these case please tell me 

Kind Regards , 

Mostafa Mahmoud