无Internet环境下，断电重启Jetson Orin NX，如何让系统时间是正确的？

[retioa]

重启后的系统时间，是关机时的时间。查询网上的解决办法，想使用RTC时间，同步系统时间，但是遇到问题：每次重启RTC时间都重置成1970年了，见下图：

该怎么办呢？

[TomNVIDIA]

Hello,

Welcome to the NVIDIA Developer forums! Your topic will be best served in the Jetson category.

Jetson & Embedded Systems

I will move this post over for visibility.

Cheers,
Tom

[KevinFFF]

Hi retioa,

Are you using the devkit or custom board for Orin NX?
What’s your Jetpack version in use?

You should add the battery for RTC to keep the time.
Or you can just sync the time with network.

[retioa]

@KevinFFF

battery

Yes，Jetpack version is 5.1.2。I don’t know the hardware. Where the red arrow in the picture below points out, is it for installing the battery?

[KevinFFF]

For the devkit, it would be J3 port.

Your board looks like custom carrier board.
So, please confirm with your vendor.

[retioa]

OK，thank you， I will。