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               
===============================================================================
^- 2a01:4f8:0:a0a1::2:1          2   8   377    96   -187us[ -187us] +/-   31ms
^- 2a01:4f8:0:a112::2:2          2   9   377   246   -406us[ -406us] +/-   29ms
^- 2a01:4f8:0:a101::2:3          2  10   377   751   -625us[ -625us] +/-   31ms
^+ 2a01:3f7::1                   1  10   377   917   -147us[ -147us] +/- 3540us
^* 194.58.200.20                 1  10   377   926    -77us[ -109us] +/- 3631us
^- 2001:638:610:be01::103        1  10   377   184  +1852us[+1852us] +/-   15ms

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 2a01:4f8:0:a0a1::2:1      N ----- -----    0   1.0   -27ms   +26ms  N
D 2a01:4f8:0:a112::2:2      N ----- -----  149   1.0   -29ms   +28ms  N
D 2a01:4f8:0:a101::2:3      N ----- -----  654   1.0   -32ms   +30ms  N
+ 2a01:3f7::1               N ----- -----  820   1.0 -3707us +3411us  N
* 194.58.200.20             N ----- -----  829   1.0 -3338us +3635us  N
D 2001:638:610:be01::103    N ----- -----   87   1.0   -13ms   +17ms  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
==============================================================================
2a01:4f8:0:a0a1::2:1        9   6   38m     -0.081      0.053   -107us    23us
2a01:4f8:0:a112::2:2        6   4   43m     -0.098      0.043   -427us    12us
2a01:4f8:0:a101::2:3        7   5  103m     -0.042      0.037   -516us    23us
2a01:3f7::1                10   8  155m     -0.032      0.026   -156us    51us
194.58.200.20              23   9  378m     -0.000      0.007   +113us    57us
2001:638:610:be01::103      6   3   86m     -0.044      0.062  +1858us    31us

Command: chronyc -n tracking

Reference ID    : C23AC814 (194.58.200.20)
Stratum         : 2
Ref time (UTC)  : Mon Jun 29 23:19:34 2026
System time     : 0.000057968 seconds slow of NTP time
Last offset     : -0.000031866 seconds
RMS offset      : 0.000026623 seconds
Frequency       : 3.949 ppm fast
Residual freq   : -0.002 ppm
Skew            : 0.006 ppm
Root delay      : 0.006801248 seconds
Root dispersion : 0.001040131 seconds
Update interval : 1037.8 seconds
Leap status     : Normal