Night owl, turned early riser because of the kids.
I achieve more in the same time frame the earlier I rise. I try to squeeze as many tasks as I can before noon, and then after noon I do the more relaxed ones.
Because, leaving the difficult stuff for the afternoon simply won't work. Like Sun Tzu said, soldier's spirit is keenest in the morning, in the afternoon he just wants to go back to camp. That's just how us humans are.
One exception would be late night dev work on your website. That's awesome. And it's done better in the evenings and nights. But I no longer have the luxury.
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