Display Windows 11 clock like the one in Windows 10 when tray is clicked

Please note that this question refers to the clock when the tray is clicked, and not to the minimized tray clock like this other question.

In short: In Windows 11, is it possible to show the clock together with the calendar, including the seconds part?

Details: When Windows 11 tray clock is clicked, the calendar is displayed without the clock:

While in Windows 10, the clock is there:

We can add a clock manually:

But I want the seconds part as in Windows 10:

I wish to not use the "show seconds" options available in Windows 11: