There is a general pessimism in this thread about the ability to control timed usage of the Hub3 - rightly so. It is not easy. But as you wish to block in a single time period (starting at one minute past midnight - ie 00.01) I would suggest you have a look see if MAC filtering would work for you. I think the real problem is that there may not be a timer you can set. It is all or nothing/on or off. And you'll need access to the devices to grab the MAC addresses.
The system is easily defeated with a Hub reset. Your 18 year old wouldn't do that - would he?
Others may jump in and tell me I am wrong about the Hub3. I haven't got one. But worth a look?
I wonder whether a technological solution is always best, appropriate or conducive to family harmony though.
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