[Milhouse]

hello, thanks, if it works if I correct the date of my RPI3, it does not record the changes to me, every time that I restart it I must correct it manually.
How could I manually set the time, in libreelec, not by kodi? thanks for your help.

The RPi doesn't have a RTC (real time clock) so it needs to set the date every time it is booted using NTP (network time protocol). This happens automatically, but your network NTP configuration is screwed up.

Fix your NTP server settings, either in your router (assuming you're using DHCP) or configure accessible NTP servers in the LibreELEC Settings > Connections.

Edit: By the way, it looks like you've configured your network to use IPv6, which doesn't appear to be working, so maybe try disabling IPv6.