an actual explanation: <a href="https://www.best-microcontroller-projects.com/ppm.html" rel="nofollow noreferrer">https://www.best-microcontroller-projects.com/ppm.html</a>
> Hi,<p>><p>> I noticed when: ntpd logs time adjustments in: /var/log/daemon it uses a<p>> unit of "ppm":<p>><p>> Jun 22 23:22:20 server ntpd[45813]: adjusting clock frequency by<p>> -1.127600 to 0.056400ppm<p>><p>> I checked: man ntpd and: man 2 adjfreq, and while: man 2 adjfreq<p>> mentions the same unit - "ppm" - it doesn't explain what that means.<p>><p>> What does "ppm" stand for ?<p>Since you can't use a search engine to figure that out, I'll give you<p>a hint. ppm means "you are stupid".