59分60秒,你听说过吗?今年7月1日,全球会在7时59分59秒后增加一秒。先是7时59分60秒,然后再变成8时0分0秒,这就是“闰秒”。要理解闰秒出现的原因,必须先了解世界时与原子时两个概念。1884年,国际上确定以地球自转运动来计量的时间作为国际标准时间,称作世界时。由于地球自转时快时慢,原子时应运而生。原子时是以1958年1月 59 minutes and 60 seconds, have you heard of it? July 1 this year, the world will increase in one second after 7:59:59. First 7:59:60, and then into 0:00 0:00, this is “leap second ”. To understand why leap seconds occur, you must first understand the two concepts of world time and atomic time. In 1884, the time that was internationally determined to be measured by the rotation of the Earth was designated as the universal time, which is called world time. Due to the rapid and slow rotation of the Earth, atomic came into being. Atomic time is January 1958