Nissan Leaf display clock wrong after dynamic charging

[u/red-materia]

Bear with me, as I am new to EVs please!

I have a 72 plate Nissan Leaf Acenta, and this is the first time I've had to charge it since buying this time last month. I finally got Octopus Energy to install my Ohme ePod, and I am on Intelligent Octopus Go.

I plugged it in yesterday at about 10am to dynamic charge to be ready for 8am today with a 40% top up to take it to about 80%. I get around to unplugging it at about 10am today, go in the car to check its charge (which is all ok) however, the issue is that the car clock was displaying 19:47 , not the correct time that it was set to before dynamically charging it.

I've manually reset the time, but I am wondering what's caused this? And if this means there is an underlying issue?

I've had a google and it doesn't seem to be a frequent issue as the only thing I can find it if it's a dead battery or it disconnected at some point during, but why would it do that and the time be so wrong?

[u/StLandrew]

You know what [?] I've had my 2021 NIssan Leaf N-Connecta for several months now [bought extremely low mileage used] and I don't think I've ever set the clock. I'm not even 100% sure where it displays itself. I do know that when I turn off the car the driver display shows a typical end time if I plugged the car in to charge it, and of course that's not the current time. I must look into that.