Windows 11 23H2 and 24H2 are testing a feature that allows you to add a "Clock" with seconds to the Notifications Center.

Microsoft is bringing the clock back to Windows 11's calendar flyout . No one quite knows what goes down in the Microsoft ...

Next, select which Icons and notifications should ... category of the option you want to change. In Windows 10, you can set Volume, Network, Clock, and Power System to On. Click OK.

Enable the setting, click Apply, and exit. To show the notification area in Windows 11/10, click the clock or notification bell icon on the taskbar. Alternatively, you can press the Windows key ...