All international express mail will be delivered before 3pm. 3. All domestic mail and packages will be delivered when the city carrier arrives at your street to deliver mail. 4. All mail and parcels should be delivered by 5pm.
https://www.quora.com/What-time-does-USPS-usually-deliver
1 Next business day delivery by 8:30 a.m., 9:00 a.m., or 9:30 a.m. to most other cities in the U.S. including Anchorage, Alaska. 2  Additional extended delivery locations are guaranteed up to 2:00 p.m.  Optional Saturday pickup and delivery available in selected locations.
https://www.ups.com/content/us/en/shipping/time/service/next-day-air-early.html
USPS packages are delivered by your regular letter carrier. If he has already delivered today, there will not be a later delivery. The tracking system is not outdated and works fairly well with some glitches, just like UPS and FedEx. The reason you are only seeing electronic notice received is that the package has not yet been delivered by the shipper to the Post Office. Also you can see more information about USPS Delivery Time. He has generated a shipping label on-line and that is all he has done so far. Amazon does not provide any tracking of their own, any tracking number they give you is the one they received from USPS.
https://www.quora.com/What-time-does-USPS-usually-deliver
UPS Next Day Air® Early. Insist on guaranteed early morning delivery for your time-critical shipments. 1  Next business day delivery by 8:00 a.m. to major cities in the 48 contiguous states.  Next business day delivery by 8:30 a.m., 9:00 a.m., or 9:30 a.m. to most other cities in the U.S. including Anchorage, Alaska.
https://www.ups.com/content/us/en/shipping/time/service/next-day-air-early.html
I think he means if it comes earlier than it's scheduled/expected to. If you pay for 3-day shipping but the delivery estimate is for two days, then you got it on time. I've paid for regular ground shipping (3-5 days) and had it arrive in two days. However, the tracking number also said expected delivery was in two days. Wild eyes (current)
http://www.overclock.net/t/1142075/does-ups-ever-deliver-early
Komusha said: Okay, listen to me because I used to work at UPS. It all depends on at what point your address is on their route. All package cars leave the facility by 8, usually a bit before if they have the chance. Their first goal is to deliver all of the Next Day Air packages before 9. So if you ordered your package through Next Day Air (which is fairly expensive), you'll get it early in the morning. Other than that, it all depends on what your area comes unto the driver route.
http://www.ign.com/boards/threads/so-what-time-in-the-day-does-ups-deliver-to-you.188957106/
1 Next business day delivery by 8:00 a.m. to major cities in the 48 contiguous states. 2  Next business day delivery by 8:30 a.m., 9:00 a.m., or 9:30 a.m. to most other cities in the U.S. including Anchorage, Alaska.  Additional extended delivery locations are guaranteed up to 2:00 p.m.
https://www.ups.com/content/us/en/shipping/time/service/next-day-air-early.html
Exactly when will my package be delivered? UPS Ground packages are generally delivered anytime Monday through Friday between the hours of 9:00 a.m. and 7:00 p.m. (and sometimes later) to residences, and to business addresses during their normal business hours Monday through Friday. UPS Ground packages cannot be scheduled to arrive at a specific time of day.
https://www.ups.com/content/us/en/resources/sri/ss_csc1.html
it says my package has been in my city for 2 days already. and the deliver estimate is not until 10/16/2011 which is a Sunday which is weird so it probably means 10/17/2011. i think they are just not bother to shipping early at all. that's why i wish it was FedEx.
http://www.overclock.net/t/1142075/does-ups-ever-deliver-early
1 Next business day delivery by 8:00 a.m. to major cities in the 48 contiguous states.  Next business day delivery by 8:30 a.m., 9:00 a.m., or 9:30 a.m. to most other cities in the U.S. including Anchorage, Alaska.
https://www.ups.com/content/us/en/shipping/time/service/next-day-air-early.html
how early does ups start delivering
The United Parcel Service starts delivering from Monday through Friday between the hours of 9:00 a.m. and 7:00 p.m. UPS start delivering on monday through friday between the hours of 9:00 a.m. and 7:00 p.m.