Library update schedules.

[Skywatch]

Is it possible (or would it be possible) to set a schedule for library updates?

I have my server power down over night and every morning there's a box on the xbian screen saying that it couldn't update and would I like to continue.

What I would like is the possibility to set the updater to only update during certain times and not others (like evenings when using the pi or nights when the server is offline).

Is it do-able?

Skywatch