XFI Gateway Turning WIFI on/off by a set schedule

I came across an old question and would like to re-ask it seeing that was over 3 years ago. Same question looking to disable wifi everyday between the hours of 12am to 6am. Off at 12am on at 6am.

https://forums.xfinity.com/conversations/your-home-network/set-xfi-complete-modemrouter-on-sleep-schedule/607b933ecc0238783d0fae20

I can see other products are able to do this ie Netgear Nighthawk and ARRIS. I currently rent my modem so if there was an option I wouldn't need to consider going to a 3rd party.