Configuring Date/Time Settings

There are two ways to configure the date/time settings: via Web Interface and through TPP's command line interface (CLI).

The most important parameter in Linux TPS is Time Zone.
Hardware clock is runing in UTC while OS gets date and time information from Internet or Intranet NTP servers in most cases.

Configure Date/Time via the Web Interface

Open TPS Web Interface and click Date & Time menu item.

Time Zone

To set time zone choose your current location in drop-down list Select time zone and click 'Apply':

To get internally updated current OS date and time click Re-read button in Date & Time section.

NTP Synchronization

Up to four NTP server addresses may be used for NTP synchronization.
Use hostname or IP address in Server #N fields.
Hardware date and time
To manually set date and time, select NTP Synchronization Off button and set date (yyyy-mm-dd) and time (hh:mm:ss) in suitable fields.
Click 'Update' button.

To save current OS date and time into hardware clock click 'Sync' button in Hardware Date/Time section.

To display current hardware date and time click Re-read button in Hardware Date/Time section.

Configure Date/Time via CLI

Open serial port connection or login via Secure Shell.

Check current Date, Time, Zone, HW clock and NTP synchronization state do: root@tpp:~# timedatectl

      Local time: Thu 2016-01-28 14:14:33 UTC
  Universal time: Thu 2016-01-28 14:14:33 UTC
        RTC time: Thu 2016-01-28 14:14:45
       Time zone: Universal (UTC, +0000)
 Network time on: yes
NTP synchronized: yes
 RTC in local TZ: no

To get a list of available time zones do


root@tpp:~# timedatectl list-timezones

To change time zone:


root@tpp:~# timedatectl set-timezone America/New_York

To manually set local date/time in OS:


root@tpp:~# timedatectl set-time "2016-01-27 12:31:42"

To enable NTP synchronization:


root@tpp:~# timedatectl set-ntp true

To disable NTP synchronization:


root@tpp:~# timedatectl set-ntp false

If NTP synchronization set to ON system will:

get NTP servers list through DHCP (if available);
get NTP servers list from the configuration file /etc/systemd/timesyncd.conf (if set);
try to use Google NTP servers if Internet is accessible;

Time and date configuration file /etc/systemd/timesyncd.conf usually contains the names of Google NTP servers:

[Time]
NTP= time1.google.com time2.google.com time3.google.com time4.google.com

Use Midnight Commander ('mc') internal editor or any traditional Linux CLI utility to change it
and don't forget to give a signal to OS to adopt the new settings:


root@tpp:~# systemctl restart systemd-timesyncd

for NTP settings

and


root@tpp:~# systemctl restart systemd-timedated

for other date/time settings.