Your crank pulley is out of whack but as someone mentioned above, it might not mean that the crank timing gear is. In order to see the crank timing gear though, you'll need to pull the crank pulley. At that point, you should change timing belt and water pump "while you're in there".
From the looks of things, your timing belt is cracking too, so perhaps a timing belt change isn't a bad idea.
Now, the elephant in the room here is, "why is the crank pulley out of whack?"
The crank pulley is "keyed" so if the woodruff key and keyway are as they should be on the crank snout (front of crankshaft), that notch on the crank pulley is indicative of what your crank timing gear is showing... which would mean that some teeth have been jumped.
Another possibility is that the pulley is loose and it stripped out your woodruff key and it's slowly rotated, but your timing is still good (so the mark on the pulley is not in line with the mark on the timing gear. Woodruff keys are replaceable but you have to remove your crank pulley to do it. If the key is trashed and so is the keyway... then you'll need a new crank, but lets not talk about that right now.
Either way, you'll need to pull the crank pulley to figure out why the notch on the crank pulley is so far off.
Interested to see what you find.