Stop volumio at specific time

it would be great if you guys add option to stop Volumio at specific time - for example every day at 10p.m.
I’m using Volumio outdoors and sometimes I forget to turn it off, and my neighbours are not very happy in that case.

I’m currently using a “crontab” solution, but it would be cool if that feature was built in Volumio. Maybe just expand that “Sleep” option with ability to sleep at specific time.