Can I use this to make my 48 hour weekend feel like a 480 hour weekend?
No, because its a technological fantasy.
People can “lose time” such that they don’t realize how long they’ve been unconscious. But they can’t “gain time”. That’s not how brains work. You can’t get an extra six weeks to study for an exam an hour before the test. Nothing will let you do that. Its pure wizard-tier shit.