Using en_AU here and I can confirm that gnome-shell just seems to make its own date format. It's nothing like the locale definition, which you can see by running:
locale d_fmt locale date_fmt
So we can't automatically get a right answer.
Using en_AU here and I can confirm that gnome-shell just seems to make its own date format. It's nothing like the locale definition, which you can see by running:
locale d_fmt
locale date_fmt
So we can't automatically get a right answer.