Restrict access by day and time per user

I would like certain remote workforce users to only be able to access their remote machine at certain times of the day. For example, we may have a user who only needs to get in to accomplish a task once a week on Saturday from 8-10am. I would like the ability to lock it down where they can only access during that window. 

I found a 'limited page access' extension that does this but for all users.