datestr not working properly

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,

[Aadil]

I tried this as well same problem:

>> datestr('22/07/2012 18:26:17',  'yyyy-mm-dd HH:MM:SS')

ans =

0028-01-02 18:26:17

Answer 1

[Andrei Bobrov]

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

[Aadil]

Worked like a charm, thanks