The history graph card in Lovelace is limited to displaying the previous 80 hours of data. I would like to display more than that, and so have been hunting for where in the source code that restriction comes from so that I can copy and alter the code to create a custom card.
I have poked around in the UI source code and have searched the various Home Assistant repos for any mention of 80 hours, or 4800 seconds, or 4800000 milliseconds, all to no avail.
Does anyone know where that restriction comes from who might be able to point me in the right direction?
Thank you very much.