The best time to work with your family in an outdoor session are early to mid morning before 10:00 am. For younger children this works great.
For the older teen children, you are going to want to look at evening twilight hours. Depending on the month this is about an hour before sunset. We would like to start around 3-4pm in the evening than work into the sunset hours. Late September and early October are great times to start no later than 5 pm as the sun starts to disappear faster than it does in July.
Working around eating and nap schedules. If it is time for your baby to eat or have a nap, no problem. We work around that. I will either edit during that time and we will have quite a time to review your images, or that is the queue to be done. We will then regroup a little later and go over everything.