Thank you very much for your suggestion. Your suggestion has been communicated to the developer and the development project manager is reviewing the content. After reviewing your suggestions, we will apply them to the official version if your proposal matches our concept. We appreciate your contribution to the beta program.
One UI Beta Team
From what I've heard, seconds used to be available before One UI.
Please add an option to show seconds in the system clock. (QuickStar does not provide that function to the collapsed status bar, only in the expanded status bar.)
I would also like to see the always on clock on the lock-screen show seconds too.