Fedex does it too with their SMARTPOST, I've dealt with all three of them, UPS, Fedex and DHL, so far, once they have been delivered to the post office I've received delivery the next day. I've received a bunch of UPS Basic deliveries in the last few weeks since I do 95% of my Christmas shopping online, all have been delivered timely the day after the PO received them as shown by UPS tracking.
Tim