Add much as possible, I don't forecast milestones/ end points on a schedule.
I can plan the whole job, but not accurately estimate the time. It will be there tomorrow.
Had I finished brushing out the ash for an hour while tired, we could do the wood in the rain today.
Instead, we'll go to another project, 5 minutes from my shop, and work on a trail touchup and burning invasive holly and blackberries. I'll do something on my own tomorrow. Thursday, that tree will be waiting for us.
I give people a rough day that we will arrive, mostly, then confirm when appropriate.
If someone wants to schedule a specific day, that's added to the bid.