一场大风 导致美国标准时间慢了4.8微秒 来源：中国新闻网 编辑：董文博 广告等商务合作，请点击这里 本文为转载内容，授权事宜请联系原著作权人 中新经纬版权所有，未经书面授权，任何单位及个人不得转载、摘编或以其它方式使用。 关注中新经纬微信公众号(微信搜索"中新经纬"或"jwview")，看更多精彩财经资讯。 这一中断导致NIST的协调世界时比应有的时间慢了4.8微秒(1微秒为百万分之一秒)。为了说明这有多短 暂，NIST发言人丽贝卡·雅各布森指出，人眨一次眼大约需要35万微秒。 截至当地时间20日晚间，博尔德NIST设施的电力已恢复，工作人员正在评估损失，并将在适当时候修 正这4.8微秒的"漂移"。 报道指出，至于这4.8微秒的"漂移"是否造成影响，NIST主管研究物理学家杰夫·谢尔曼表示要看用户是 谁。 谢尔曼指出，对普通公众而言，这种漂移微小到几乎可以忽略，但对关键基础设施、电信、GPS信号等 相关应用，可能带来更严重的后果。 中新网12月23日电 据美国全国公共广播电台(NPR)21日报道，当地时间17日，位于美国科罗拉多州的美 国国家标准与技术研究所(NIST)实验室因大风停电，导致美国标准时间慢了 ...

Core Viewpoint - The article discusses the importance of accurate timekeeping in modern society, highlighting that the official time in China originates from the National Time Service Center in Xi'an, Shaanxi Province, and emphasizes the implications of time accuracy for various sectors, including finance and national security [8][10][44]. Group 1: Timekeeping and Its Importance - The unified and precise Beijing time is crucial for the functioning of society, as it serves as the foundation for various systems [8][10]. - The National Time Service Center has been under cyberattacks from the United States for nearly two years, indicating the strategic importance of time management [9][10]. - Accurate time is essential for high-precision fields such as aerospace, satellite navigation, and financial transactions, where even a slight error can lead to significant consequences [18][38]. Group 2: Mechanisms of Timekeeping - The National Time Service Center employs two main methods for time dissemination: ground-based and space-based systems [26][27]. - Ground-based time dissemination includes shortwave radio broadcasts and low-frequency time code signals, achieving millisecond to microsecond accuracy across the country [28][30][39]. - Space-based time dissemination relies on Global Navigation Satellite Systems (GNSS), such as GPS and BeiDou, which provide time signals with nanosecond precision [34][36]. Group 3: Implications for Various Sectors - In finance, accurate time signals are critical for transactions, as they follow a "price priority, time priority" principle, where the speed of order execution can determine success or failure [39][40]. - Regulatory bodies in the EU and the US require financial institutions to synchronize their systems with standard time, emphasizing the need for precision in timekeeping [43]. - The military also relies on precise time coordination for operations, where discrepancies can lead to confusion and loss of control [43][44].