Time can't be wasted, it can only be earned
Imagine you have to spend time anywhere. Sounds freeing. Then limit your locations and activities, and you'll easily reach conditions where it's more difficult than work. Say, eight hours in one room without entertainment or the opportunity to eat or wash is already unpleasant. Sixteen hours in bed without a phone is worse than work, even if you sleep half the time.
Every second of life is a second in the war with Death. Reasoning along the lines of "I have 16 hours today, three I'll spend here, four here" is the ravings of a madman. A brick from a roof will kill you, a tram will decapitate you, and your body will be torn apart by dogs. You can only hope to make your way through herds of cattle while the sun illuminates the streets and accomplish roughly what you've planned. But this is only the synchronicity of your slicing through the fabric of Time and Death with the slicing of other people and celestial bodies.