windows – How the hell is it possible that Bitcoin Core keeps saying “X days left” every single day?

I turn my PC on every day. I don’t sleep more than 8 hours. Yet Bitcoin Core, after I verify that it has fully synced every day, keeps saying “7 days remaining” for example, as if it deletes the last week’s data every time I shut down the computer and starts over from that point every time I turn it back on again.

What gives? This has started happening only recently. 0.20.1.