One can further add the clock widget to the home screen (in iOS 14 or later) but that too shows an analog clock display. It also has a sweep second hand that comes in handy to count seconds on iPhone.
That said, the Clock app on the iPhone home screen features an analog clock face instead of a static icon, unlike other apps. Surprisingly, there is no native way to see the time in hh:mm:ss format on iOS devices. The clock on the iPhone and iPad show the digital time in hours and minutes, both on the lock screen and the status bar on the home screen.
