MATLAB: Datestr not working properly

Question

Can someone explain this?

>> raw(3)
ans = 
      '22/07/2012 18:26:17'
>> datestr(raw(3),  'yyyy-mm-dd HH:MM:SS')
ans =
0028-01-02 18:26:17

It was working before, not sure why its messing up the date but not the time

Thanks,

Answer 1

   datestr(datenum(raw,'dd/mm/yyyy HH:MM:SS'),  'yyyy-mm-dd HH:MM:SS')