People :
I'm trying to get the RTC working on a Udoo Neo.
I installed a battery and set the RTC and it keeps running (a bit fast) while powered off, but on power up the system clock is several months off (11 may).
It's not clear how configure this. Should I use timedatectl (in systemd) or timedatex (https://github.com/mlichvar/timedatex) or something else ?
Thanks, Ken