When will my package arrive?

I ordered something online 5 days ago and the shipping was 3-5 business days. Since the time I ordered my package to today, has been all business days. So just out of curiosity I went to www.packagetrackr.com and it gave me a map and details and stuff like that. It also said that they left from the last destination to my house at 3:44 am. I went to a place where you get directions and It said that it only takes one hour from the last place my shipment was to my house and it is now 1:04. Does anybody have an explanation?