[loodish]

I like cron jobs that run during the work day. If something goes wrong I would prefer to handle it at 10am rather than 10pm. Why make life unpleasant?

If it really needs to run during a low load period I line it up for 6am work time. Again so that if something goes wrong it leads into the work day rather than disrupts the on-call too badly. 6am also provides a daylight savings buffer either way so you don't have to care. Recent work has all been on 24/7 operations though.