There must be a syslog entry for ntpd daemon when it updates the local (client) time wrt server.
Grepping on my beagonebone syslog, I found this below entry for ntpd with respect to server:
proto: precision = 1.666 usec (-19)
Any lead for the log when ntpd updates the local time and how the log looks like?
Note: Not interested to query like ntpq -p
or ntpstat
.