1994 Honda Civic Timing Bet Replacement

I need to replace the timing belt and maybe the waterpump on my son's '94 Civic DX. He's got over 120k on it and I'm trying to be preventative with the timing belt. I will do the water pump as well if it's not that much more trouble.

I've got the haynes manual and I planned on doing it per the book; but I've got a problem. The diagram in the haynes manual shows the numbered cylinders and distributor cap positions different than the way it is on his car.
It shows the first cylinder on the right is No. 1 just like I thought but it shows number one on the cap to be directly opposite where his car is currently connected.

How is that possible? is his timing 180 out? should I change it when I do the timing belt? Do I need to take all the sprockets and everything loose to put on the new belt or only if I'm doing the water pump as well? Any advice is helpful