Realme
Show or Hide the Status Bar Clock auf Realme
The status bar clock on Realme phones is controlled by a dedicated system setting, separate from the lock screen clock or the Always On Display. Changing it only affects the small time indicator shown while you use apps, not the larger clock on your lock screen.
To adjust it, go to Settings ➔ Notifications & status bar ➔ Time. There you can choose between Show hours and minutes, Show hours, minutes, and seconds, or Do not show.
Adding seconds can be useful if you time tasks throughout the day, but it also means the clock refreshes constantly, which some people find distracting. Removing the clock entirely frees up a small amount of space in the status bar, which can help if you already have many notification icons showing.
If you actually want to hide the lock screen clock or change its style instead of the status bar version, that requires a different setting under the lock screen or Always On Display options, not this menu.