6000万年不差1秒的精准，“北京时间”正遭遇一场“无声战争”

Group 1: Core Insights - A major cyber attack by the U.S. National Security Agency (NSA) targeting China's National Time Service Center has been uncovered, aiming to disrupt the integrity of "Beijing Time" [1] - The NSA's cyber operations have been systematic and planned, utilizing 42 specialized cyber attack tools from August 2023 to June 2024 to launch high-intensity attacks on multiple internal network systems of the National Time Service Center [1] - The attacks are primarily conducted during late night to early morning Beijing time, employing virtual private servers from various global locations to obscure the source of the attacks [1] Group 2: Historical Context of the National Time Service Center - The National Time Service Center, located in Xi'an, Shaanxi, is responsible for broadcasting "Beijing Time," which has historical significance dating back to its first broadcast in 1949 [2][4] - The establishment of the time service station in Shaanxi was strategically chosen for its central location in China, ensuring nationwide signal coverage and security [4][5] Group 3: Technological Advancements in Timekeeping - The precision of timekeeping in China has significantly improved, with the National Time Service Center achieving a remarkable accuracy of 60 million years without a second of error starting in 2024 [7] - The center utilizes atomic clocks, specifically cesium fountain clocks, which have been developed to provide a stable and precise standard time [6][7] Group 4: Implications of Cyber Attacks on Timekeeping - Disruption of "Beijing Time" could have severe consequences across various sectors, including power, finance, and communication, with even minor time discrepancies leading to significant operational failures [9] - The U.S. aims to undermine China's technological and economic development by targeting the foundational time standards that support critical infrastructure [9] Group 5: Role of the BeiDou System - The BeiDou satellite navigation system not only provides positioning and navigation but also plays a crucial role in timekeeping, offering high precision time synchronization capabilities [11][12] - The BeiDou system enhances China's ability to maintain control over its time standards, ensuring that accurate timekeeping is domestically managed [13]