Pi 5 — NTP
System Time Error
The current remaining time error after correction. Shows how close the system clock is to the GPS reference at any moment.
Time Offset
Time difference between the Pi clock and the GPS reference. Shown in seconds. Lower is better — ideally below 0.05 seconds (50 ms).
Clock Frequency
How fast or slow the Pi clock runs relative to GPS, in ppm (parts per million). Chrony adjusts this continuously to keep time accurate.
Graphs generated with RRDtool