YOU ARE A COMMERCIAL: You may be selling soap, socks or sausages. Yours is a short life but a merry one — full of testimonials testifying, jingles jingling and slogans slogging. You may be a minutesworth of whys and wherefores, or a bright and breezy 7 seconder.
Source: wiktionary
With 30 minutesworth of labor, through trade, they get food that would take them 45 minutes of labor to produce at home.
Source: wiktionary
When, as happened several times that season, I was asked to address some particular topic, I would explain that as I hadn't five minutesworth to say just then on anything except my novel in progress
Source: wiktionary
[F]ly wheels with storage times of a few minutes looked 'very promising' for small to medium-size systems and flywheels that could hold ten minutesworth or more were 'likely to be very helpful in multi-megawatt multi-diesel grids.
Source: wiktionary