I used to have similar issue where on powerup sometimes it used to start at 1970 and at other times in Nov 3 2016. Googled and found few others also reporting same issue. For now have modifed weewx to check if time is in 2018 before starting. Still got one issue few days back with time corruption but it has become more infrequent now. I have a RTC ready though, just dont have time to install it yet.
On Saturday, 3 February 2018 05:02:15 UTC+5:30, vince wrote: > > On Friday, February 2, 2018 at 2:13:09 PM UTC-8, Zeky91 wrote: >> >> Yes, i have tried that but its again the same. >> If I disconnect power for 5 minutes on RPI, when I reconnect rpi updates >> time on Davis to old time(5minutes ago) and after few seconds more to one >> minute rpi gets real time! If I reboot rpi after this with reboot comand, >> after that time is normal. >> Or thru wee_device --set-time >> >> > Again, if you are on a pi and you get good behavior after a 'reboot' and > bad behavior after a power disconnect, then your pi is coming up and trying > to start weewx before it knows correct time. This historically has been > that fake-hwclock thing, but perhaps systemd has something equivalent doing > the same bad behavior. > > Just for a test, disable weewx via systemctl and power the pi off then on. > Then manually start weewx after it powers back up. I suspect things will > work correctly. This will verify that it's the pi os feeding incorrect > time after a powerup. > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
