If your work could be easily quantified and measured like that, it would be contracted out to the lowest bidder.

Then maybe it doesn't need to be done on a strict work/non-work schedule everyday? If one is an hourly employee, then sure, they should be doing work things when on the clock... but if they are salaried, part of that is not having to clock in and out to switch between work and non-work tasks, and not being a strict work/non-work schedule.