Je contrôle le temps avec la commande:

date
Sat Oct 28 9:50:38 UTC 2023

Je contrôle le Time Zone:

timedatectl list-timezones
Europe/Rome

J'affiche les serveurs NTP présent dans ma machine:

ntpq -p
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
 0.debian.pool.n .POOL.          16 p    -   64    0    0.000   +0.000   0.000
 1.debian.pool.n .POOL.          16 p    -   64    0    0.000   +0.000   0.000
 2.debian.pool.n .POOL.          16 p    -   64    0    0.000   +0.000   0.000
 3.debian.pool.n .POOL.          16 p    -   64    0    0.000   +0.000   0.000
-ns3051461.ip-51 192.162.70.70    3 u  452 1024  377   12.715   +0.853   0.318
-45.128.41.10    192.168.78.236   2 u  536 1024  377   10.144  -51.092   5.361
-82-64-131-93.su 82.64.45.50      2 u  389 1024  377   21.741  -136.10 109.166
-router-ix5.serv 78.194.78.49     3 u  192 1024  377    8.749   -1.142   0.981
*villisika.miuku 85.199.214.98    2 u  221 1024  377    8.075   -1.662   1.130
+time.cloudflare 10.19.13.133     3 u  811 1024  377    7.457   -0.312   0.382
+blade2.rack1.se 29.88.99.4       2 u  935 1024  377   12.194   +0.150   0.271

J'ajoute des serveurs NTP:

nano /etc/ntp.conf
Ajouter les serveurs français:
# pool: <http://www.pool.ntp.org/join.html>
server 0.fr.pool.ntp.org
server 1.fr.pool.ntp.org
server 2.fr.pool.ntp.org
server 3.fr.pool.ntp.org

sudo timedatectl set-timezone Europe/Paris 

Ajouter le bon fuseau horaire:

Europe/Paris

timedatectl list-timezones

 systemctl restart ntp

Je contrôle le statut :

timedatectl status

Local time: Sat 2023-10-28 12:16:41 CEST
           Universal time: Sat 2023-10-28 10:16:41 UTC
                 RTC time: Sat 2023-10-28 10:16:41
                Time zone: Europe/Paris (CEST, +0200)
System clock synchronized: yes
              NTP service: n/a
          RTC in local TZ: no

timedatectl help
*timedatectl [OPTIONS...] COMMAND ...
 
Query or change system time and date settings.
 
Commands:
  status                   Show current time settings
  show                     Show properties of systemd-timedated
  set-time TIME            Set system time
  set-timezone ZONE        Set system time zone
  list-timezones           Show known time zones
  set-local-rtc BOOL       Control whether RTC is in local time
  set-ntp BOOL             Enable or disable network time synchronization
 
systemd-timesyncd Commands:
  timesync-status          Show status of systemd-timesyncd
  show-timesync            Show properties of systemd-timesyncd
 
Options:
  -h --help                Show this help message
     --version             Show package version
     --no-pager            Do not pipe output into a pager
     --no-ask-password     Do not prompt for password
  -H --host=[USER@]HOST    Operate on remote host
  -M --machine=CONTAINER   Operate on local container
     --adjust-system-clock Adjust system clock when changing local RTC mode
     --monitor             Monitor status of systemd-timesyncd
  -p --property=NAME       Show only properties by this name
  -a --all                 Show all properties, including empty ones
     --value               When showing properties, only print the value