Cannot Set Local Time on STM32MP257

[ElbertFu]

Failed to set local time on STM32MP257.

Firstly, I tried to use the command

date -s "yyyy-mm-dd xx:xx:xx"

, and system can successfully return the time I set. But when I again use “date” to get the local time, system still return the wrong time in 2024.

Then I tried to write into RTC, but still failed.

Now because of the failure of time setting, all the apt command are unavailable.

So I want to know how to correctly change the local time and RTC time, or to find an alternate way to apt-get package.

Thank you.

[Erwan SZYMANSKI]

Hello ​@ElbertFu ,
Which board do you use ?

Can you try below command as mentioned in this article:
 

Board $> date +%y%m%d -s "yyyymmdd"

Board $> date +%T -s "hh:mm:ss"

 

Kind regards,
Erwan.

[ElbertFu]

Hello,

I am using STM32MP257.

I’ve tried the command mentioned above, and here is the result:

root@ATK-DLMP257:~# date +%y%m%d -s "20260820"
+%T -s "22:22:25"
260820
root@ATK-DLMP257:~# date +%T -s "22:22:25"
22:22:25
root@ATK-DLMP257:~# [ 4497.195510] systemd-journald[266]: Time jumped backwards, rotating.

root@ATK-DLMP257:~# date
Wed Feb 28 02:41:01 AM CST 2024

The situation is a little bit troublesome.:-(

Thank you.

[Erwan SZYMANSKI]

Hello ​@ElbertFu ,
I tested it on the STM32MP257F-DK board (and eval board), and I do not face a such issue on my side:

root@stm32mp276-33-ac-c7-cc-39:~# date
Sat Apr 20 00:00:03 UTC 2024
root@stm32mp276-33-ac-c7-cc-39:~# date +%y%m%d -s "20260820"
260820
root@stm32mp276-33-ac-c7-cc-39:~# date +%T -s "22:22:25"
22:22:25
root@stm32mp276-33-ac-c7-cc-39:~# date
Thu Aug 20 22:22:26 UTC 2026

Don’t you have an additional service on your Linux distribution that automatically detect date derivation ? Or is it not Ethernet connected to a time synchronization system that is wrong dated ? 

Kind regards,
Erwan.