I'm struggling with some issues right now where I'm finding that I'm much more productive in the late afternoon/evening than I am during the daylight hours. I'm a telecommuting software engineer, and it's somewhat important that I be available during core business hours (9AM-4PM) yet I find that I just am unable to focus and get into my work during the day only to leave much of my work left to be done during the evening. My work is very challenging and interesting, so i do not believe it's a boredom issue.

I've been thinking about whether it has to do with the daylight/sunlight and my inability to "settle down" and concentrate when it's light outside. This "condition" is causing me to stay up late and lose hours of sleep per night. I've been thinking about going to see a psychologist or therapist to see wtf I can do to rectify the situation.