Ok, go to the part where Craig (Ice Cube) and Smokey (Chris Tucker) are waiting inside Craig's room on the night Big Worm told them he was coming around to collect the $200 that Smokey owed him. While the two are sitting around talking about what to do, look at the windows of Craig's room. I beleive there are two windows and out of both of them, (even though the curtains are drawn) you can clearly see that it is day-time outside and the sun is shining. Later in that sequence, Craig's father comes in (John Witherspoon) and tells the boys to get out of his house. As the two exit the house, it's pretty obvious that it is night-time.