The GPS with PPS is more accurate but any property configuration with GPS and/or NTP (using chrony) should be close enough. The RTC just helps retain that me during boot.?
toggle quoted message
Show quoted text
When set up for RTC, the pi takes the time from the RTC module at boot.? The pi also periodically checks the RTC and adjusts itself to it and has a "drift" file that it uses to correct itself.? You can set it up in cron to check the ntp servers and save the time to the RTC as well
Get