When a Wall Display/CPU/DAKboard OS device has been powered off or disconnected from the internet for a length of time, the internal clock may gain, or lose time. When reconnected to the internet, the DAKboard device will automatically update the time. However, sometimes this update process is delayed and an "incorrect date/time" or "Your clock is behind" message will appear.
If your device is connected to the internet, leave it powered on for about 5-10 minutes to give it enough time to sync, then restart it by unplugging the power and plugging it back in.
If the time still does not update, you may be unable to access the time servers from your location due to a networking issue. If you are comfortable with accessing the command-line interface for the device and troubleshooting the network issue, please review the following testing instructions:
Local time: Tue 2021-06-08 12:46:21 EDT Universal time: Tue 2021-06-08 16:46:21 UTC RTC time: n/a Time zone: America/New_York (EDT, -0400) System clock synchronized: yes NTP service: active RTC in local TZ: no
pi@dakboard:~ $ cat /etc/systemd/timesyncd.conf # This file is part of systemd. # # systemd is free software; you can redistribute it and/or modify it # under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or # (at your option) any later version. # # Entries in this file show the compile time defaults. # You can change settings by editing this file. # Defaults can be restored by simply deleting this file. # # See timesyncd.conf(5) for details. [Time] #NTP= #FallbackNTP=0.debian.pool.ntp.org 1.debian.pool.ntp.org 2.debian.pool.ntp.org 3.debian.pool.ntp.org #RootDistanceMaxSec=5 #PollIntervalMinSec=32 #PollIntervalMaxSec=2048
PING 1.debian.pool.ntp.org (220.127.116.11) 56(84) bytes of data. 64 bytes from 18.104.22.168 (22.214.171.124): icmp_seq=1 ttl=53 time=74.10 ms
Connection to 126.96.36.199 23 port [udp/*] succeeded!
More advanced details on the timedatectl service are available to be reviewed at the following: