On October 15, the 28th International Conference on Metrology passed an important resolution in Versailles, France: from May 20, 2027, the global timing system will no longer use the leap second adjustment mechanism that has been used for more than half a century, and the maximum allowable value of |UT1-UTC| was relaxed from the current 0.9 seconds to 3,600 seconds, or 1 hour. #闰秒改闰时 #据悉，最近一次闰秒发生在北京时间2017年1月1日7点59分59秒。 At the time, the clock first came to 7:59:60, then one second before 8 o'clock.

On October 15, the 28th International Conference on Metrology passed an important resolution in Versailles, France: from May 20, 2027, the global timing system will no longer use the leap second adjustment mechanism that has been used for more than half a century, and the maximum allowable value of |UT1-UTC| was relaxed from the current 0.9 seconds to 3,600 seconds, or 1 hour. #闰秒改闰时 #据悉，最近一次闰秒发生在北京时间2017年1月1日7点59分59秒。 At the time, the clock first came to 7:59:60, then one second before 8 o'clock.