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   45m   -186ns[ +111ns] +/- 1000ns
#* PPS                           0   4     0   45m  +3473ns[+3778ns] +/- 5294ns
^- 198.137.202.32                2  10   377   113  -1500us[-1500us] +/-   44ms
^- 208.113.130.146               2  10   377   28m  -8867us[-8867us] +/-   23ms
^- 141.11.89.193                 2  10   377   592  -4171us[-4171us] +/-   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
=======================================================================
P GPS                       N ----- -----  45m   1.0 -1200us +1183us  N
* PPS                       N -P--- -P---  45m   1.0 -1480us +1481us  N
P 198.137.202.32            N ----- -----  113   1.0   -38ms   +43ms  N
P 208.113.130.146           N ----- -----  28m   1.0   -17ms   +12ms  N
P 141.11.89.193             N ----- -----  592   1.0   -21ms   +12ms  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                         9   8   25m     -0.003      0.005  -8140ns  2044ns
PPS                         6   3   20m     +0.000      0.004   +421ns   495ns
198.137.202.32             56  34   13h     -0.145      0.019  +2829us   652us
208.113.130.146            64  32   12h     -0.164      0.027  -1396us   923us
141.11.89.193              12   7  190m     -0.004      0.540  -3777us  1208us

Command: chronyc -n tracking

Reference ID    : 50505300 (PPS)
Stratum         : 1
Ref time (UTC)  : Sat Mar 14 07:59:58 2026
System time     : 0.000000029 seconds fast of NTP time
Last offset     : +0.000000345 seconds
RMS offset      : 0.000006555 seconds
Frequency       : 37.745 ppm fast
Residual freq   : +0.000 ppm
Skew            : 0.005 ppm
Root delay      : 0.000000001 seconds
Root dispersion : 0.002719184 seconds
Update interval : 16.0 seconds
Leap status     : Normal

Command: chronyc -n serverstats

NTP packets received       : 443
NTP packets dropped        : 0
Command packets received   : 3455
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   : 443
NTP kernel RX timestamps   : 443
NTP kernel TX timestamps   : 0
NTP hardware RX timestamps : 0
NTP hardware TX timestamps : 0