Turn On Seconds in the Taskbar Clock 

With Windows 11 May 2023 update.
The functionality is not enabled by default. To turn it on, open the Settings app and go to Personalization - Taskbar - Taskbar behaviors. Now, check the Show seconds in system tray clock box. When turned on, it will use more power. For many laptop users, especially the ones with low battery life, it might not be worth enabling the capability because of the greater power consumption. But if you are a desktop user, there should be no issues at all.
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