leap second

基本解释

Greenwich Mean Time updated with leap seconds.
用閏表來測定的格林尼治時間。
For one, the leap second occurs in the middle of the day in Asia and Australia, causing a time hiccup during stock trading.
其中一個是，潤秒發生在亞洲和澳洲的日間，時間會在貨運進行儅下“跳針”。
US scientists want to change the current system, which keeps clocks in synch with solar time by adding a leap second every 18 months or so.
美國科學家希望改變現行系統，亦即透過每隔約18個月添增1閏秒，讓時鍾與太陽時保持一致。
Since 1999 until recently,the two time standards have been in close enough synch to escape any need to add a leap second,NIST said.
該協會說，從1999年開始到最近幾年，原子時和天文時一直処於同步狀態，所以不需要增加一個閏秒。
Since 1999 until recently, the two time standards have been in close enough synch to escape any need to add a leap second, NIST said.
該協會說，從1999年開始到最近幾年，原子時和天文時一直処於同步狀態，所以不需要增加一個閏秒。

a second added to or removed from a scale for reckoning time on one particular occasion, to synchronize it with another scale