Please site the statute(s).
"Timing" involves trying to gague when the light's going to go green so that you do not have to slow down. If you're right, you hit the limit line as the light's changing, if you're wrong, you blow a red light, and possibly cause a wreck. People timing traffic lights base their actions on the color of lights for cross traffic; watching to see the green-to-yellow change, and trying to adjust their speed so that they will cross the limit line as the light for cross traffic goes to red and their own light changes to green.
Success depends upon speed, distance from the intersection, duration of the yellow, lag beteween the appearance of the red light for cross traffic, and the appearance of green for the one doing the timing. Success also depends upon there being NOBODY in the flow of cross traffic who happens to legally enter the intersection late in the yellow and still be on the way out as the cross traffic light goes to red. Any vehicle going through late is at high risk for being t-boned by the person "timing" the light.
I'll have to do more sleuthing to get you a cite from the Vehicle Code.