How should time be expressed in time, distance, and speed calculations?

Time should be expressed to the nearest second in time, distance, and speed calculations to ensure precision in maritime operations. When calculating speed, which is typically measured in knots (nautical miles per hour), accurate time measurement is critical, as even small discrepancies can lead to significant errors over long distances. Expressing time to the nearest second allows for a more exact calculation of speed and, consequently, a more reliable assessment of distance traveled over a given period.

In the context of maritime navigation and boat operations, where timing can significantly affect safety and efficiency, such precision becomes even more important. When making quick adjustments or responding to conditions, being able to gauge time down to the second can make a substantial difference.

Using less precise time increments, such as minutes or hours, would introduce a level of estimation that could accumulate over distance, leading to potential navigation errors. Thus, the use of seconds for these calculations provides the accuracy needed for effective and safe boat operation.