Time/Date Synchronization
The 825 Gen2 provides time/date synchronization to automatically set the time and date from a server on the internet.
The "Setup" menu screen "Set Date/Time" has the input prompt "Automatic:".
If this is set as "Yes" the automatic time synchronization is enabled. This is the same as the terminal command:
sudo timedatectl set-ntp true
If "Automatic" is changed to "No" this is the same as:
sudo timedatectl set-ntp false
From a terminal the timedatectl command can be used with no arguments to check whether synchronization is enabled (NTP service active).
card825gen2:~$ timedatectl Local time: Wed 2024-02-21 14:29:45 CST Universal time: Wed 2024-02-21 20:29:45 UTC RTC time: n/a Time zone: America/Chicago (CST, -0600) System clock synchronized: yes NTP service: active RTC in local TZ: no
The following command will show information about time synchronization.
card825gen2:~$ timedatectl show-timesync --all LinkNTPServers= SystemNTPServers= FallbackNTPServers=time1.google.com time2.google.com time3.google.com time4.google.com ServerName=time3.google.com ServerAddress=216.239.35.8 RootDistanceMaxUSec=5s PollIntervalMinUSec=32s PollIntervalMaxUSec=34min 8s PollIntervalUSec=17min 4s NTPMessage={ Leap=0, Version=4, Mode=4, Stratum=1, Precision=-20, RootDelay=0, RootDispersion=106us, Reference=GOOG, OriginateTimestamp=Wed 2024-02-21 14:13:48 CST, ReceiveTimestamp=Wed 2024-02-21 14:13:48 CST, TransmitTimestamp=Wed 2024-02-21 14:13:48 CST, DestinationTimestamp=Wed 2024-02-21 14:13:48 CST, Ignored=no, PacketCount=6, Jitter=10.205ms } Frequency=1093238
The systemctl command can also be used to view status of the systemd-timesyncd service. This will be active when time synchronization is enabled.
card825gen2:~$ sudo systemctl status systemd-timesyncd ● systemd-timesyncd.service - Network Time Synchronization Loaded: loaded (/lib/systemd/system/systemd-timesyncd.service; enabled; vendor preset: enabled) Active: active (running) since Wed 2024-02-21 13:55:24 CST; 26min ago Docs: man:systemd-timesyncd.service(8) Main PID: 223 (systemd-timesyn) Status: "Initial synchronization to time server 216.239.35.8:123 (time3.google.com)." Tasks: 2 (limit: 3533) Memory: 1.1M CGroup: /system.slice/systemd-timesyncd.service └─ 223 /lib/systemd/systemd-timesyncd
The "Setup Network Services" menu has a service selection "Network Time Protocol (NTP)". This refers to the ntpdate service and should not be needed (Set to "Off"). The systemd-timesyncd service used by timedatectl is the preferred method of time synchronization for the 825gen2.
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