I can save some of you a lot of time and energy! Stop clicking “Check for updates” for iOS 7 from Apple! Here is the iOS 7 release schedule from Apple so you can get some work done and not drive yourself insane cussing Apple out all morning!
* indicates adjustment for daylight saving time (DST) or summer time.
You will be able to download both over the air (OTA) and via iTunes at your designated time. By the way, please backup your files.