I just bought an intermatic timer. It has a.m. in white and p.m. in black with a time of day in the center. It also has 4 pegs two green two red. One green and red set for a.m. and one green and red set for p.m. it also has a manual switch. I bought this for outdoor christmas lights and I can't figure out how to set it for on at 4p.m. and off at 11 p.m. It keeps going on early and off early maybe I'm an idiot but this is pissing me off