2019-07-12-----2022-12-15 uk.pool.ntp.org

2022-09-22-----2022-09-22 0.ubuntu.pool.ntp.org

2022-09-01-----2022-09-01 1.centos.pool.ntp.org

2020-09-14-----2022-04-08 0.uk.pool.ntp.org

2019-09-03-----2022-04-05 europe.pool.ntp.org

2020-09-08-----2022-03-07 1.uk.pool.ntp.org

2021-11-12-----2021-11-12 1.nettime.pool.ntp.org

2021-10-25-----2021-10-25 1.amazon.pool.ntp.org

2021-10-25-----2021-10-25 0.rhel.pool.ntp.org

2021-09-19-----2021-09-19 pool.ntp.org

2020-05-19-----2020-05-19 0.pool.ntp.org

2018-10-06-----2018-10-06 ntp.sjtu.edu.cn