This is common on all iDevices as well as Macs, the 1 year limited warranty usually overruns a few weeks as they are "guestimating" on shipment when it will be in the consumers hands. I've generally found that items ordered directly from Apple and delivery tracked by them are accurate to the day of delivery, while, buying from a distributer sometimes you can get extra time and sometimes you can be short a few weeks depending on how long the item has sat in stock. The later can be corrected by uploading your proof of purchase (receipt). You generally shouldn't have any issue with the extra time, unless for some reason you are pressed by Apple or a representative for POP.