Chrony Graphs [Data Legend]

Day
Week
Month
Chrony server statistics graph - day
Chrony system clock offset graph - day
Chrony system clock tracking graph - day
Chrony sync delay graph - day
Chrony clock frequency graph - day
Chrony clock frequency drift graph - day
Chrony server statistics graph - week
Chrony system clock offset graph - week
Chrony system clock tracking graph - week
Chrony sync delay graph - week
Chrony clock frequency graph - week
Chrony clock frequency drift graph - week
Chrony server statistics graph - month
Chrony system clock offset graph - month
Chrony system clock tracking graph - month
Chrony sync delay graph - month
Chrony clock frequency graph - month
Chrony clock frequency drift graph - month

vnStati Graphs

vnStat summary
vnStat daily
vnStat top 10
 vnStat hourly
vnStat monthly
vnStat yearly

Chrony - NTP Statistics

Command: chronyc -n sources -v


  .-- Source mode  '^' = server, '=' = peer, '#' = local clock.
 / .- Source state '*' = current best, '+' = combined, '-' = not combined,
| /             'x' = may be in error, '~' = too variable, '?' = unusable.
||                                                 .- xxxx [ yyyy ] +/- zzzz
||      Reachability register (octal) -.           |  xxxx = adjusted offset,
||      Log2(Polling interval) --.      |          |  yyyy = measured offset,
||                                \     |          |  zzzz = estimated error.
||                                 |    |           \
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^- 213.239.239.164               2  10   377   708   -571us[ -571us] +/-   44ms
^- 213.239.239.165               2   8   377    62   -531us[ -531us] +/-   39ms
^- 213.239.239.166               2  10   377   916   -743us[ -743us] +/-   45ms
^+ 2a01:3f7::1                   1  10   377   964   +151us[ +151us] +/- 3574us
^* 194.58.200.20                 1  10   377  1025   +167us[ +181us] +/- 3531us
^- 2001:638:610:be01::103        1  10   377   683  +2250us[+2250us] +/-   16ms

Command: chronyc -n selectdata -v

  . State: N - noselect, s - unsynchronised, M - missing samples,
 /         d/D - large distance, ~ - jittery, w/W - waits for others,
|          S - stale, O - orphan, T - not trusted, P - not preferred,
|          U - waits for update,, x - falseticker, + - combined, * - best.
|   Effective options   ---------.  (N - noselect, P - prefer
|   Configured options  ----.     \  T - trust, R - require)
|   Auth. enabled (Y/N) -.   \     \     Offset interval --.
|                        |    |     |                       |
S Name/IP Address        Auth COpts EOpts Last Score     Interval  Leap
=======================================================================
D 213.239.239.164           N ----- -----  645   1.0   -30ms   +29ms  N
D 213.239.239.165           N ----- -----    0   1.0   -40ms   +39ms  N
D 213.239.239.166           N ----- -----  853   1.0   -42ms   +40ms  N
+ 2a01:3f7::1               N ----- -----  901   1.0 -3547us +3890us  N
* 194.58.200.20             N ----- -----  962   1.0 -3393us +3732us  N
D 2001:638:610:be01::103    N ----- -----  621   1.0   -13ms   +18ms  N

Command: chronyc -n sourcestats -v

                             .- Number of sample points in measurement set.
                            /    .- Number of residual runs with same sign.
                           |    /    .- Length of measurement set (time).
                           |   |    /      .- Est. clock freq error (ppm).
                           |   |   |      /           .- Est. error in freq.
                           |   |   |     |           /         .- Est. offset.
                           |   |   |     |          |          |   On the -.
                           |   |   |     |          |          |   samples. \
                           |   |   |     |          |          |             |
Name/IP Address            NP  NR  Span  Frequency  Freq Skew  Offset  Std Dev
==============================================================================
213.239.239.164            13   7  111m     +0.054      0.051   +260us    92us
213.239.239.165             6   4   34m     +0.009      0.518   +147us    59us
213.239.239.166             6   3   86m     +0.038      0.129   -493us    64us
2a01:3f7::1                 6   3  103m     +0.023      0.161   +105us    78us
194.58.200.20              11   9  129m     +0.003      0.033    +68us    56us
2001:638:610:be01::103      6   3  103m     +0.028      0.154  +2228us    95us

Command: chronyc -n tracking

Reference ID    : C23AC814 (194.58.200.20)
Stratum         : 2
Ref time (UTC)  : Sun Feb 22 18:47:56 2026
System time     : 0.000008930 seconds slow of NTP time
Last offset     : +0.000014325 seconds
RMS offset      : 0.000105476 seconds
Frequency       : 5.929 ppm fast
Residual freq   : +0.001 ppm
Skew            : 0.034 ppm
Root delay      : 0.007000650 seconds
Root dispersion : 0.001129882 seconds
Update interval : 1030.3 seconds
Leap status     : Normal