On 2016-01-27 09:36, John R Pierce wrote: Hi! > ntpd won't make drastic changes in the time, if its too far off. its > designed to stabilize the clock by making small changes in speeding it > up or slowing it down, and not 'staircase' setting it absolutely. http://www.ntp.org/ntpfaq/NTP-s-algo.htm#Q-ALGO-BASIC-STEP-SLEW Apart from that, the ntp-implementation (or chrony nowadays) "wants" to have more than one time source. http://www.ntp.org/ntpfaq/NTP-s-algo-real.htm#Q-NTP-ALGO Cheers Dirk -- https://d5e.org/