I just noticed this today - I'm running LibreELEC 7.0.3 RPi2.arm but my date is stuck on November 26, 2016 and the time is off by about 5 and a half hours. When I enter the SYSTEM Settings I can change the appearance of the language, Time zone, etc., but the date is showing on the screen and I can't change it. I can change its appearance, but the date shown does not match the current date - it's fixed on November 26, 2016. I did not have this issue yesterday, as I was able to watch a few hockey games, but tonight I couldn't and it wasn't until I checked to see why that I noticed the date.
Any advice other than creating a new SD Image would be helpful - but if I must start from scratch that's fine too.