How to set the system time when using an offline / static IP configuration?

MulongDeng

How can I properly set the system time when using an offline / static IP configuration?

My device is in an offline environment with a static IP address. However, after rebooting, the system time resets to 1970.1.1, which causes my standalone application to stop running (it appears not to start correctly).

Currently, I have to manually set the time each time using:

date -u -s "2025/11/10 06:00:00"

Is there a way to permanently solve this issue so that the time is retained or set automatically after a reboot?

Device: OAK4-D R7
DepthAI: v3.1.0
Luxonis OS: RVC4 1.20.5 (debug)

jakaskerl

MulongDeng
You can't retain it since the the device has no battery. You should be able to be build the app with internet and then just run it when you don't have it.

Thanks
Jaka

MulongDeng

OK, Thanks