You're not dumb, you're just not taking a sec to think it through, that's all.
ok... I'll give a bit of credit, at first glance you could see the parallel. The difference is that those things stop when the vehicle stops. No power is needed to keep them running.
To create a legit parallel though, that would make the clock stop each time you turned off the sled, and start from the time it had when you killed it.
They're stored on a very basic solid state storage, and then recalled when it starts again... that's not sufficient to run a clock, it needs constant power, granted MINUTE amounts of it, but still needs it. Funny, I didn't even know ours with Estart HAD a clock.
To compare that would be like asking how a picture stays on an SD card without a battery... maybe that is a better way to explain it.
