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

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               
===============================================================================
#* PPS                           0   4   377    17   +785ns[ +818ns] +/-  381ns
^- 2606:4700:f1::1               3  10   377   986  -1627ns[-1342ns] +/- 3979us
^- 2001:14b8:1000::5             2   8   377   124    -56us[  -56us] +/- 2799us
^- 135.181.151.153               2  10   377   575    -17us[  -17us] +/- 2631us
^- 178.251.154.103               2   9   377    97   +127us[ +127us] +/- 1425us
^- 194.100.49.152                2  10   377  1001    -41us[  -40us] +/- 1917us

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
=======================================================================
* PPS                       N -P--- -P---    7   1.0  -859ns  -122ns  N
P 2606:4700:f1::1           N ----- -----  976   1.0 -4046us +4043us  N
P 2001:14b8:1000::5         N ----- -----  114   1.0 -2610us +2487us  N
P 135.181.151.153           N ----- -----  565   1.0 -2689us +2698us  N
P 178.251.154.103           N ----- -----   87   1.0 -1282us +1568us  N
P 194.100.49.152            N ----- -----  991   1.0 -2011us +1933us  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
==============================================================================
PPS                        42  20   657     +0.000      0.002     +0ns   428ns
2606:4700:f1::1             7   6  103m     -0.000      0.067    -17us    44us
2001:14b8:1000::5          15   8   60m     -0.010      0.014    -61us    14us
135.181.151.153             7   6  103m     +0.038      0.111    +69us    96us
178.251.154.103             7   4   77m     +0.020      0.039   +115us    22us
194.100.49.152              6   4   86m     +0.001      0.056    -54us    23us

Command: chronyc -n tracking

Reference ID    : 50505300 (PPS)
Stratum         : 1
Ref time (UTC)  : Sun Jul 26 07:04:34 2026
System time     : 0.000000061 seconds fast of NTP time
Last offset     : +0.000000033 seconds
RMS offset      : 0.000000100 seconds
Frequency       : 8.052 ppm fast
Residual freq   : +0.000 ppm
Skew            : 0.002 ppm
Root delay      : 0.000000001 seconds
Root dispersion : 0.000017986 seconds
Update interval : 16.0 seconds
Leap status     : Normal