How long does it take for a parcel to reach and leave the airport? Tracking Number: RB708167938CN

my tracking status RB708167938CN Collection Nanjing GB Wed, 30 Oct 2013 14:02:00 GMT
and I am worried that I mite have got lost or china post are slow processing it for delivery to GB that is where I live and it will be deliver to me with in 15- 30 days so when do you think it will be leaving the airport