Research and writing can be done at most hours of the day with a starting budget. I'll try to time my work out to equate to an even hourly pay, but am willing to work longer to get the job done right, i.e., if your budget is $100 for the project, I'll try to get the project done in about 2.5 hours, but am willing to take 3 hours to finish it for the same price.
I work best with deadlines and check-in points. As long as I know when a project is due, and/or when you need updates, I'll get my writing and research done in the interim. I tend to work the best in the evening and at night if I have a choice.