I have always pretty much been a lark. I have found that I accomplish much more if I get up and start my day early. By late afternoon, I am pretty depleted and ready to relax. There have been exceptions to this of course (especially during my teen years), but my mom talks all the time about how I was such an early riser as a child. She would even let me stay up late on weekends to try and get me to sleep later the next morning, but I still woke up at the same early time every single day. Having been a parent who had two early birds, I certainly empathize with her now. Tom was more of a night owl; when we first got married, he could sleep the day away. He used to think it was so weird that I loved getting up early, even when we were on vacation. I just wanted to enjoy the whole day off and not spend half of it sleeping. He learned to accept my lark ways and I (mostly lol) learned to except his night owl ways.
Which one are you? Let me know in the comments!