North is to South what the clock is to timeWhat? No it isn't. North is the opposite to south. A clock is an instrument for measuring time. Those are not equivalent relationships at all. North is to a compass as time is to a clock, maybe. North is to south as the future is to the past.
This line stands out to me every time I hear this song and it's the only line I actually know, because it's a pretty forgettable song, but that line is so dumb that you can't help but notice it. Maybe that's the idea. That line is deliberately wrong just so you'll notice the song exists. If so, well played Pearl Jam.
But actually I think Pearl Jam are just idiots.