I am using Fedora 29, with kernel version 4.19.15-300 on my laptop. It has been a while that I see the computer clock is about 6 to 7 minutes ahead.
Pondering why, I checked the status of chronyd (systemctl status chronyd.service) and I see the following log message repeated every time the machine is resumed from sleep:
chronyd[812]: Forward time jump detected!
Also, the output of chronyc source is an empty list. Does this mean that there is a problem in the configuration of NTP on the machine, and that the time has never been actually synchronized? Could anyone help me to fix the issue?
P.S. I had (wrongly) asked this question on Stack Overflow (https://stackoverflow.com/questions/54616923/automatic-date-time-update-results-in-wrong-time-on-linux-machine). I was suggested to check the status of ntpd and it seems it is disabled by default:
$ service ntpd status
Redirecting to /bin/systemctl status ntpd.service
● ntpd.service - Network Time Service
Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled; vendor preset: disabled)
Active: inactive (dead)
