Based almost 100% on libstatusbar (iOS 8.1.1 version) by phoenix3200, Source Code on Github
This version removes the upper limit CoreFoundation (iOS version) restriction and attempts to keep it from loading inside of non Application processes. The UIStatusBarTimeItemView functions have also been removed. Compiled for iOS12.x, armv64 and arm64e.
The statusbar clock sometimes disappears after you unlock your device. This appears to be an issue with the official version of libstatusbar on iOS 9.2.x/9.3.x.
I'm looking into it but may not be able to fix it.
If you use a tweak, such as Moveable9 or mikoto, to show the LockScreen status bar clock, this will not happen.