With the rapid development of science and technology, people can control time more accurately. Some people are overwhelmed by the anxiety caused by time, procrastinate on everything, and become the servant of time. Even so, we still have to be the masters of time, not servants. 　　First of all, if you look closely, technology has advanced rapidly, and people’s measurement of time has become more and more accurate. In primitive times, only day and night were known. Later, people invented the sundial by observing shadows and divided time into twelve hours, which was accurate to two hours. Then there were notches, allowing people to time accurately to nearly a quarter…