It seems appropriate that, on the longest day of the year, I reflect upon the fact that I am a night person through and through. Career-wise, I've engaged in 3 major writing projects (major = more than 100 pages), and each has taken place primarily when the sun is safely on the other side of the earth.
Intellectually, I don't believe that it's impossible for me to adjust my schedule so as to spend most of my waking hours during daylight, but I've never been able to manage it. And in the summers, when my work time is taken up with more flexible hours and fewer meetings, my body always seems to gravitate towards working at night and sleeping during the day.
So from that perspective, today is the worst day of the year.
As someone that has run across your car on the way to mine while leaving the office late at night, I hear you.