2022-03-08-----2022-03-08 2.us.pool.ntp.org

2020-07-01-----2022-02-10 north-america.pool.ntp.org

2017-11-22-----2022-01-28 1.us.pool.ntp.org

2020-11-14-----2020-11-14 1.ubnt.pool.ntp.org

2017-11-18-----2020-08-22 us.pool.ntp.org

2020-08-17-----2020-08-17 0.us.pool.ntp.org

2020-03-31-----2020-03-31 pool.ntp.org

2020-01-24-----2020-01-24 0.debian.pool.ntp.org