都试过了，基本上都能使： server 133.100.11.8 prefer server 210.72.145.44 server 203.117.180.36 server 131.107.1.10 server time.asia.apple.com server 64.236.96.53 server 130.149.17.21 server 66.92.68.246 server www.freebsd.org server 18.145.0.30 server clock.via.net server 137.92.140.80 server 133.100.9.2 server 128.118.46.3 server ntp.nasa.gov server 129.7.1.66 server ntp-sop.inria.fr server 210.72.145.44(国家授时中心服务器IP地址)