Here's what I get from this link, https://www.att.com/checkmyorder/omhub.rt
Just put in order number, and Zip Code, it comes up. Mine says I ordered at 3:00:17AM ET. I think the time stamp was 3:04 AM ET though, either way no reason for a 10 minute difference to delay a phone a week, especially when it wasn't a Jet Black or Black 7+, I thought about one of those, but saw Into October, I said no way.
Wireless order (1 item)
Order number: XXXXXXXXXXXXX
Order date: 09/09/2016 at 3:00:17 a.m. ET
Order status:
Preparing to ship
We're getting your order ready to ship. Expect your items to ship during the dates we gave you.
Thank you for placing your order with us.
Estimated ship dates:
September 23, 2016 - September 30, 2016