Prerequisites Step 1: Endure you are in the correct time zone
# timedatectl Local time: Wed 2022-04-20 10:04:44 +08 Universal time: Wed 2022-04-20 02:04:44 UTC RTC time: Wed 2022-04-20 02:04:44 Time zone: Asia/Singapore (+08, +0800) System clock synchronized: no NTP service: active RTC in local TZ: no
Prerequisites Step 2: List Time Zone
# timedatectl list-timezones ..... Asia/Singapore .....
Prerequisites Step 3: Set Time Zone
# timedatectl set-timezone Asia/Singapore
In Rocky Linux 8.5, the ntp package is no longer supported and it is implemented by the chronyd (a daemon that runs in user-space) which is provided in the chrony package.
chrony works both as an NTP server and as an NTP client, which is used to synchronize the system clock with NTP servers.
To install the chrony suite, use the DNF Package Manager.
# dnf install chrony
Enable the Service
# systemctl start chronyd # systemctl status chronyd # systemctl enable chronyd
Check it is synchronised
[root@h00 etc]# timedatectl Local time: Wed 2022-04-20 10:19:56 +08 Universal time: Wed 2022-04-20 02:19:56 UTC RTC time: Wed 2022-04-20 02:19:56 Time zone: Asia/Singapore (+08, +0800) System clock synchronized: yes NTP service: active RTC in local TZ: no
Setting up NTP Client Using Chrony in Rocky Linux 8.5
# vim /etc/chrony.conf
..... pool sg.pool.ntp.org iburst .....
# systemctl restart chronyd
Show the current time sources that chronyd is accessing
# chronyc sources MS Name/IP address Stratum Poll Reach LastRx Last sample =============================================================================== ^? 18.104.22.168 0 6 0 - +0ns[ +0ns] +/- 0ns ..... ..... .....