2022-01-28-----2022-01-28 1.nettime.pool.ntp.org
2020-06-17-----2021-04-30 cz.pool.ntp.org
2018-12-28-----2021-02-22 pool.ntp.org
2021-02-22-----2021-02-22 3.android.pool.ntp.org
2020-09-28-----2020-09-28 1.cz.pool.ntp.org
2017-12-19-----2020-07-21 europe.pool.ntp.org
2020-06-17-----2020-06-17 0.cz.pool.ntp.org
2020-06-01-----2020-06-01 0.centos.pool.ntp.org