When replacing a timing belt, what does the crankshaft pulley mark point to? on 1998 Volvo V70

The car is an earlier model and I am puting it back together after overhauling the motor.

Asked by for the 1998 Volvo V70
There is a mark on the crankshaft and a mark on the block that line up. It's really hard to get this across without an image, so look at the Volvo forum mathewsvolvo or get the online repair manual here: