Comment 6 for bug 726053

Unless there is a user-option that mandates a frequent update of the display, i'd rather not have the clock wake up the cpu unnecessarily. That would be one less module making a dent in the battery life.

The dbus traffic idea is nice, if you can find a reference signal that either Gnome, or at least Ubuntu, sends on resume. There was the powersave project that defined various signals in that regard, but I'm not sure of the status of it.

Hacks in /etc/acpi or the likes are less desirable, and would require adding a custom dbus api specific to the clock. Whereas the signal could be shared across all system services and indicators that would have a need for it.