How do I adjust the Clock Indicator format?

Solution 1:

Try the following:

gsettings set com.canonical.indicator.datetime time-format "'custom'"
gsettings set com.canonical.indicator.datetime custom-time-format "'%A, %d %B %Y, %I:%M:%S'"

That seems to do the trick for me. You should be able to do the same using dconf-editor.

In dconf editor, it'd be something like this:

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