Crossing the finish line after the optimum time results in penalties for each second over.

Analysis showed this was the optimum time and place to change history.

The optimum time for the course was 9 minutes, 46 seconds.

They also received 1 penalty point for each second over the optimum time.

Any necessary elections for tax purposes must be identified and made at the optimum times.

A vacation is not the optimum time to instill order.

Now appeared to be the optimum time to enter the fray.

The optimum time must be determined by trial and error.

"The optimum time for transport is in sixteen minutes," the man went on.

Instead, that is the optimum time to cut your losses.