NTP management

The Network Time Protocol (NTP) server can be changed by using a user account with management access set to admin.

You can refer to the steps to change your NTP server:

1. Editing /etc/chrony.conf

You can edit the configuration file by entering the following command.
sudo vi /etc/chrony.conf
Use the following format:
pool my-NTP-server [option]...
Replace my-NTP-server with the FQDN of your actual NTP server. You can specify multiple NTP servers.

Among the options, it is beneficial to include the iburst option. chronyd will make four quick requests to an NTP server configured with the iburst option right after it starts up. A single query is often insufficient for a reliable assessment of an NTP server's validity, so these four queries expedite the evaluation process.

Example
pool pool1.ntp.org iburst
pool pool2.ntp.org iburst
pool pool3.ntp.org iburst

2. Applying the modified configuration

Apply the modified configuration by entering the following command:
sudo systemctl restart chronyd

3. Checking the modified configuration

You can check the modified configuration by entering the following command:

sudo chronyc sources

You will see a list of NTP sources along with their status and response times. Look for the new servers you added to ensure they're being queried by chronyd. Each server is marked with a caret (^) symbol, which indicates that the server is being actively used by your system.