I think that they are assuming that the only time you will want to reboot is if something hangs the Z, in this case your time may need to be adjusted.
Seems to be hardcoded somewhere as I\'ve been unable to find a script that calls the sate/time app.
BTW - how often are you rebooting? I haven\'t rtebooted for aver 3 weeks now - the last time due to mistakenly installing a OZ gcc3 ipk and crashing the Z.
Stu