It's always interesting to get a look at how other people see things.
GNOME Shell, by default, shows only the time in the center of the top panel, showing the date (and calendar) when you click on it. I change this to show the day and date as well, as I'm forever forgetting it, and there's lots of dead space up there in the panel anyway, so it may as well be put to some kind of practical use. This is an option in gnome-tweak-tool, and I've seen quite a few screenshots configured the same way, so I know I'm not alone in this.
So, I filed a bug proposing this be made the default. It's lots of fun reading the replies. There are objections I simply would never have thought of, in a million years. Allan Day worries that "Day, date, time" is not symmetrical, where "time" alone is. Andreas Nilsson considers what smartphone interfaces do with the same information. Both of these are considerations I'd just never have even thought of. I'm not sure I agree with either, but it's neat to see what comes to other people's minds that doesn't come to yours.