Clock settings are disabled from Time & Date Settings

Question

In my time & Date settings clock settings seems to be disable. Which default package is missing on my system ?

Answer 1

I realize that this is an old issue, but given that I experienced the same problem, and that this question comes up high in Google, I figured I'd put a response in.

In Ubuntu 13.10, I had the same issue, and I solved it by entering the following command in the terminal:

killall unity-panel-service

This immediately reset the panel, and displayed the clock.

Obviously, I was running Unity when I experienced this issue.

I found this answer at Upgraded to 13.10 now clock settings are all disabled and clock does not display