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               
===============================================================================
#? GPS                           0   4     0     -     +0ns[   +0ns] +/-    0ns
#? PPS                           0   4     0     -     +0ns[   +0ns] +/-    0ns
^+ 142.202.190.19                2  10   377   25m   -635us[ -633us] +/-   58ms
^+ 66.244.16.123                 2  10   377   24m   -912us[ -910us] +/-   73ms
^* 172.104.209.204               4  10   377   565  -4454us[-4449us] +/-   47ms

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
=======================================================================
M GPS                       N ----- -----    0   1.0    +0ns    +0ns  ?
M PPS                       N -P--- -P---    0   1.0    +0ns    +0ns  ?
+ 142.202.190.19            N ----- -----  25m   1.0   -59ms   +58ms  N
+ 66.244.16.123             N ----- -----  24m   1.0   -64ms   +65ms  N
* 172.104.209.204           N ----- -----  559   1.0   -43ms   +45ms  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
==============================================================================
GPS                         0   0     0     +0.000   2000.000     +0ns  4000ms
PPS                         0   0     0     +0.000   2000.000     +0ns  4000ms
142.202.190.19             64  36   22h     +0.035      0.047   -411us  2600us
66.244.16.123              25  12  516m     -0.018      0.056  +2797us   658us
172.104.209.204            64  31   20h     -0.031      0.062  -1616us  2958us

Command: chronyc -n tracking

Reference ID    : AC68D1CC (172.104.209.204)
Stratum         : 5
Ref time (UTC)  : Wed May 13 10:50:38 2026
System time     : 0.000203858 seconds slow of NTP time
Last offset     : +0.000005151 seconds
RMS offset      : 0.000183570 seconds
Frequency       : 37.847 ppm fast
Residual freq   : +0.001 ppm
Skew            : 0.033 ppm
Root delay      : 0.055897236 seconds
Root dispersion : 0.017517088 seconds
Update interval : 1024.7 seconds
Leap status     : Normal

Command: chronyc -n serverstats

NTP packets received       : 1269
NTP packets dropped        : 0
Command packets received   : 41985
Command packets dropped    : 0
Client log records dropped : 0
NTS-KE connections accepted: 0
NTS-KE connections dropped : 0
Authenticated NTP packets  : 0
Interleaved NTP packets    : 0
NTP timestamps held        : 0
NTP timestamp span         : 0
NTP daemon RX timestamps   : 0
NTP daemon TX timestamps   : 1269
NTP kernel RX timestamps   : 1269
NTP kernel TX timestamps   : 0
NTP hardware RX timestamps : 0
NTP hardware TX timestamps : 0