I don't know how all the desktop parts work together. However, it is a waste of resources to let your computer run only because for example you need to access it remotely in a couple of hours/days/month, or have it do some task. And I see many user that keep their machines running, just because they do not see a way to schedule it.
The desktop environments would help saving energy, if their shutdown dialogs could by default provide the option (button/checkbox) to schedule a restart.
I don't know how all the desktop parts work together. However, it is a waste of resources to let your computer run only because for example you need to access it remotely in a couple of hours/days/month, or have it do some task. And I see many user that keep their machines running, just because they do not see a way to schedule it.
The desktop environments would help saving energy, if their shutdown dialogs could by default provide the option (button/checkbox) to schedule a restart.