时间同步必备，Android 手机，Android 平板时间同步服务器
最新国内 NTP 服务器地址及 IP，测试可用。
因服务器稳定性无法保证，仅 2014 年亲测试可用。
“ntp.sjtu.edu.cn”,// 61.164.36.105 上海交通大学网络中心 NTP 服务器地址
“s2f.time.edu.cn”,// 202.112.29.82 东北地区网络中心
“133.100.11.8”,// 日本福冈大学
“time-a.nist.gov”,// 129.6.15.28 NIST, Gaithersburg, Maryland
“time-b.nist.gov”,// 129.6.15.29 NIST, Gaithersburg, Maryland
“time-a.timefreq.bldrdoc.gov”,// 132.163.4.101 NIST, Boulder, Colorado
“time-b.timefreq.bldrdoc.gov”,// 132.163.4.102 NIST, Boulder, Colorado
“time-c.timefreq.bldrdoc.gov”,// 132.163.4.103 NIST, Boulder, Colorado
“utcnist.colorado.edu”,// 128.138.140.44 University of Colorado, Boulder
“time.nist.gov”,// 128.138.141.172,24.56.178.140 NCAR, Boulder, Colorado
“nist1.symmetricom.com”,// 69.25.96.13 Symmetricom, San Jose, California
“nist1-sj.glassey.com”,// 216.171.124.36 Abovenet, San Jose, California
