I guess a more specific question is how many appraisals did it take you to reach 2,500 hours?
Simple answer is well over 300. But in 2006-the end of 2008 while I was a trainee, it was a lot quicker to type a report.
The state basically said (and I'm assuming it holds true to this day - and I paraphrase) basically it's the time from you accept an order to the time an order is complete. You (as a trainee) get to count the time/hrs you put into that report.
i.e. so if you help from start to finish and it takes 8 hrs, you count 8 hrs in your log. If you start it, do some of the research and inspection, but none of the typing, you count that time (I'm 99% sure driving to/from a property counts in that, but double check with your state)
Assuming 75% of your workload was SFR, and throw in some condo/mulit units, and exterior only.
From what you're asking, I'm assuming you're going for CR. If that's the case, SFR, condo's, multi's (2-4 fam) and exterior only all count toward your hours (unless your state is different)
Again, as you'll most likely find out and if you do a little searching on this forum, you'll see that this profession is not a "9-5" typically. So don't worry about the "hours." Just because you work on a report for 1 hr one day, 4 hrs the next, and 3 hrs the 3rd day ... that's 8hrs on that report that you can log! It's not a log of how many consecutive hrs, but how many TOTAL hours!