In my experience, it's more about water temp than daylight. For example, water warms up throughout the day, so early in the spawn, my preference is to fish mid day to catch the warmer temp water. Bite could be slow early morning and evening time since the sun is going up and down. Later spawn, morning bite gets better since the nights (typically) are warmer and the mid day bite seems to get a little tougher since the water is even warmer. I don't usually fish after dark, so I am curious as well to see if others find fish on the banks after dark later in the spawn. More seasoned veterans should be around shortly to give their take. Happy fishing!