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    22   +397ns[ +562ns] +/-  193ns
^- 2606:4700:f1::1               3  10   377   948   -216us[ -203us] +/- 4080us
^- 2001:14b8:1000::5             2   9   377   339  -5881ns[-5494ns] +/- 3428us
^- 135.181.151.153               2  10   377   535    -70us[  -67us] +/- 2321us
^- 178.251.154.103               2  10   377   975    -97us[  -82us] +/- 1617us
^- 194.100.49.152                2  10   377   484    -85us[  -82us] +/- 1794us
^- 2001:4860:4806:8::            1  10   377   947   -206us[ -193us] +/- 1628us

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---    8   1.0  +272ns  +865ns  N
P 2606:4700:f1::1           N ----- -----  934   1.0 -4115us +3984us  N
P 2001:14b8:1000::5         N ----- -----  325   1.0 -2936us +3020us  N
P 135.181.151.153           N ----- -----  521   1.0 -2389us +2365us  N
P 178.251.154.103           N ----- -----  960   1.0 -1327us +1710us  N
P 194.100.49.152            N ----- -----  470   1.0 -1821us +1787us  N
P 2001:4860:4806:8::        N ----- -----  933   1.0 -1720us +1582us  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                        13   8   192     +0.000      0.012     +2ns   634ns
2606:4700:f1::1            28  17  465m     +0.143      0.003  -3889ns    44us
2001:14b8:1000::5           6   3   42m     +0.072      0.080    +48us    19us
135.181.151.153             6   4   86m     +0.110      0.108    -21us    51us
178.251.154.103            34  17  439m     +0.143      0.003   +132us    43us
194.100.49.152             12   7  189m     +0.144      0.022   +136us    57us
2001:4860:4806:8::         15   8  241m     +0.147      0.024   +134us    98us

Command: chronyc -n tracking

Reference ID    : 50505300 (PPS)
Stratum         : 1
Ref time (UTC)  : Wed Nov 04 03:59:28 2026
System time     : 0.000000041 seconds fast of NTP time
Last offset     : +0.000000171 seconds
RMS offset      : 0.000000510 seconds
Frequency       : 8.109 ppm fast
Residual freq   : +0.000 ppm
Skew            : 0.013 ppm
Root delay      : 0.000000001 seconds
Root dispersion : 0.000023866 seconds
Update interval : 16.0 seconds
Leap status     : Normal