2016-12-09-----2024-04-14 time-a.nist.gov

2020-04-27-----2024-03-02 ntp2.eye4.cn

2023-12-05-----2023-12-29 time.redflagblog.info

2023-12-29-----2023-12-29 time.redflagblog.org

2023-12-29-----2023-12-29 ntp.redflagblog.org

2023-12-05-----2023-12-26 time.redflagblog.com

2023-12-01-----2023-12-09 time.redflagblog.xyz

2019-07-08-----2023-05-29 time-a-g.nist.gov

2022-11-09-----2022-11-09 time.liangke.net

2016-11-27-----2020-10-27 time.nist.gov

2020-02-07-----2020-02-07 ntp1.glb.nist.gov

2018-11-28-----2018-11-28 ntp.peige.org

2018-03-16-----2018-03-16 0.us.pool.ntp.org