All 3 - it varies! I have no real time to be at work, so I kind of get into that mode. I pretty much can show up anytime before 9am without being even thought of as late.
I tend to be more on time on average I guess, with appointments and whatnot. I found it pays to be early to the dentist - a short wait the last few times, and got in before my scheduled appt!
I always freak out thinking I will be late so I start getting ready hours before, and get nervous when I think we are running out of time, when in all reality, we have PLENTY of time left. . .
It depends on the day- sometimes i'm early and sometimes i'm running just a bit late. I'm usually pretty close to the right time i'm stupposed to be somewhere though- i'm never more than just a few moments early or late.