Any way to schedule automatic firmware updates?

A little while ago I enabled automatic updates on my RBRE960. But lately it’s done updates in the middle of the morning, around 10:30am or so. My wife and I both work from home and she is usually in meetings for much of the morning, so this is quite disruptive.

Is there a way to schedule these automatic update checks? I’m logged into the advanced web admin and can only find a simple enable/disable toggle under Administration > Firmware updates. Is there somewhere else I should look? Thanks.