It just happened to me as well, but on the lock screen the iPhone 8 :
No time or date just the wallpaper, so weird
Restarted and it 's working now but definitely is a bug of iOS 11 or iOS 11.0.2(i have updated just yesterday )
Please report it to Apple Feedback
I just did, more people report it more chances they fix it
One thing I also did, beside restarting, was to go to
Settings-General-Date & Time and switch the
Set Automatically (Time Zone )to off
Not sure it's linked but in case the system is working on deciding where you are , maybe this could affect the Time..?! 😕
It's little awkward but..still no other issues so far
Thanks for that. I just sent them comments. Hope this makes a difference
Same thing with me since iOS 10.3.x. on an iPhone 6S. Either they freeze along with the notifications getting jumbled and freezing or they disappear on both home and lock screens. Just recently upgraded to the iPhone 8 Plus and the same thing is happening but it is contained to the lock screen. Sometimes a restart doesn’t work and have to immediately try restart again. Factory restore doesn’t permanently clear it either. All you can do is keep restarting when they crop up until Apple hopefully sends a software fix.
Iphone 7 time and date disappeared and weather widget not refreshing after ios 11 update
