That’s all the time it took to allow a supposedly dyslexic girl to not only keep pace with her public-schooled peers, but make up all the ground she’d lost while in school.
I was assessed by my local home education division within the council and was surprised to discover I had to spend only 45 minutes a day teaching Georgia to give her the same level of attention as a full day in a class of 35 pupils.
Of course, the irony is that after having homeschooled her daughter long enough to make sure she had caught up, the mother promptly stuck her back in school again. I don’t recommend limiting homeschool to only 45 minutes a day, but given that pace, consider how fast even children of average intelligence can advance simply by spending three hours a day on their academic education.