The pulse width of the laser is measured in picoseconds.

This light bulb consumes one watt-second of energy per second.

He thought for a few seconds before giving an answer.

This program operates in milliseconds.

This program operates in milliseconds.

This computer operates in nanoseconds.

The International System of Units is a standard of measurement widely used around the world.

The International System of Units is the standard measurement system used by scientists all over the world.

Well then, I'm off.

He admitted that it is difficult to execute the plan, saying 'it is easier said than done.'