RTC Usage
The AIO-186JD4 development board has an RTC (Real Time Clock) chip TT8563RH, which can be used to set the system clock.
Here are common RTC operations:
# View RTC time
$ sudo hwclock
2024-05-09 10:53:15.268874+0800
# View system time
$ date
Tue May 9 10:57:03 CST 2024
# Set system time to RTC time
$ sudo hwclock -s
# Save current system time to RTC
$ sudo hwclock -w