I don't exactly live by the clock but I do plan my days to get certain things done. I have an extremely hectic schedule and its impossible to deviate from my schedule irregardless of a romantic interest. The guy would have to be very understanding but as it turns out; I have never met one that is. Being in the this type of situation; I certainly would understand if he had things to do and couldn't be flexible. That being said; I can be flexible at times but mostly I stay to a set schedule.

Up by 4:30 every morning, except Sunday.
Work starts at 6:30 a.m., six days a week... No breaks, no lunch break.
If I'm lucky, I can be out of the office between 4:30 p.m. and 5:00 p.m.
...
In Sundays, and vacation time, the words "alarm clock" do not exist in my vocabulary.